Yu - Gi - Oh ! ARC - V - Episode 021 " Beyond Belief " , known as " Beyond the Pendulum " in the Japanese version , is the twenty - first episode of the " Yu - Gi - Oh ! ARC - V " anime . It first aired in Japan on August 31 , 2014 and in Australia on November 15 , 2015 . It became available with official subtitles via Crunchyroll on November 22 , 2016 . Summary . In a simulation at Leo Corporation , Declan steps forwards . The reflections of " D / D Savant Galilei " and " D / D Savant Kepler , " now with altered effects , gleam in his glasses , and using the Scale 1 " Galilei " and the Scale 10 " Kepler , " he Sets the Pendulum Scale . Both monsters , now with glowing red eyes , arise in the columns of light beside Declan , who chants , " Great power which shakes my very soul ! Arise within me and give birth to a new light that rends the darkness ! Pendulum Summon ! Come before me , my monster servants ! " The Summon portal opens , and as the purple mass of light surges forth , Declan chants , " The three transcendental deities who rule over all kings , D / D / D Doom King Armageddon ! " as he calls forth all three copies . A technician confirms the Summon , and another states that the energy levels are stable . The lead technician is pleased , if it can stabilize at this stage . The monsters hang in the air without any troubles as Declan imagines himself facing Yuya Sakaki and " Odd - Eyes Pendulum Dragon , " and he muses his rival ' s name . He reaches for the last card in his hand , only to be stopped by Claude , who points out that they ' ve successfully cleared the day ' s benchmarks . Declan heaves a sigh of relief . Later , Claude congratulates Declan , as now they ' re one step closer to creating their own Leo Corporation Pendulum Cards . Declan points out that they are still incomplete ; their energy output is still less than that of those used by Yuya , thus as they are now , they ' re far from usable in the tournament . Claude apologizes , vowing to make them usable . Declan agrees that that is the deadline . They cannot underestimate their opponents in Paradise City , no matter where they might come from . In You Show Duel School , Yuya is sitting in the Duel Field , watched by the kids . Ally notes that he ' s been sitting there for a while , and Tate points out that Yuya seemed so happy yesterday talking about how he only has two matches to win to qualify for the tournament . Frederick suggests that Yuya ' s brain might be shivered out from all the quizzes . Yuya is remembering his conversation with Nico Smiley , who congratulated him on his second victory . Yuya thanked him , but pointed out that Nico didn ' t seem happy , but Nico reassures him that he is happy : Yuya learned proper hospitality from the Cooking Duel , and that Duels are a communication tool through the Quiz Duel , racking up successive wins on top of that . But being happy is Yuya ' s job , and while it ' s a good start , it ' s only been within Nico ' s expectations . As entertaining people comes first for a pro , Yuya has to surprise and steal the hearts of his audience , all the while earning applause . Being able to surpass the audience ' s imaginations is the mark of a pro . In the present , Yuya growls in frustration admitting that what Nico said is true : when his father first took to the skies in an Action Duel , it was often said that the crowd had their hearts stolen too . Then he remembers what Declan told him about his father , and he thinks that Declan surprised him too , able to use Fusion Summon s , Synchro Summon s , and Xyz Summon s one after the other , and even Pendulum Summoning . And he also claimed to see further possibilities of evolution in Pendulum Summoning . He takes off his pendant and swings it in the air , musing on the possibility , asking why he can ' t see it . He gets up and runs out of the Duel Field , to the kids ' surprise . Skip Boyle is drawing cards from a dispenser , up to 383 . Yuya runs in , asking his principal what he should do so that he can see it , and Skip replies that the road is long , but he shouldn ' t give up , he should go one step further , and keep taking steps down the path . Yuya protests that he doesn ' t know which path to take , so he can ' t go forward , so what should he do to see what path he should take ? Skip replies that he can ' t see it either , despite being together for so long - he can ' t see his beloved daughter ' s heart at all , and he bursts into tears , much to Yuya ' s confusion . The kids note that Zuzu hasn ' t been coming to Duel School recently , and she ' s at Sora ' s fifth match . Sora ' s opponent has just completed his turn , and he dramatically tells Sora to face him . Sora appreciatively praises the kabuki Duelist , as he might even give Yuya ' s Entertainment Dueling a run for its money . Zuzu tells him to hurry it up , as he ' s going to end it on this turn . Sora reluctantly agrees , noting that Zuzu ' s been excited recently , and he draws " Edge Imp Sabres " . He points out that he ' s been showing Zuzu his cards so far , so what should he do next ? Zuzu replies that it ' s obvious : he should use the " Polymerization " in his hand to fuse " Edge Imp Sabres " with the " Fluffal Bear " that ' s also in his hand . Sora agrees , commenting that it looks like she ' s got it down . He activates the card , and Zuzu mimics his movements and words , as they fuse " Edge Imp Sabres " and " Fluffal Bear . " They chant , " Claws of the demon and fangs of the beast ! Within a vortex of mystery , become one and reveal to us your new form ! Fusion Summon ! Appear before us , horrifying beast that shreds all ! Frightfur Bear ! " They attack directly , wiping the other Duelist out , and as he hits the wall and slides down on it , he declares it to be a splendid view . The stagehands draw the curtains across as Sora ' s WIN portrait pops up . Sora comments that the fifth one was a pushover too , but he ' s glad that Zuzu is learning Fusion , so it ' s all good . Zuzu vows not to think of unnecessary things anymore ; she has to completely master Fusion Summoning for the Junior Youth Championship , in order to defeat Julia Krystal . At LID , Kit asks Julia if she ' s going to go out searching again today . Julia replies that of course she is , she has to find that black masked man and ask him about Professor Marco . Kit asks if she ' s sure that he ' s the culprit , and Dipper asks if she has seen him use Xyz . Julia points out that that ' s why she needs to find him and see if he uses Xyz for herself before heading out . Kit comments that she ' s stubborn , and Dipper warns him not to let Julia hear him say that or she ' ll send him flying . Kit admits that Julia is right ; if they don ' t find the culprit fast , the situation is only going to get worse . Dipper admits that he heard rumors about some rumors about LID top team members getting taken out too , and Kit muses that the culprit might show up before them soon . Suddenly Gong approaches Kit , brimming with apparent rage . Kit unlimbers his wooden katana , angrily asking if Gong wants to face him again . Instead , Gong ' s knees crash to the ground , and he explains that he has a request for a fellow man . Kit is , if anything , even more surprised by this , gabbling in shock . In the alleyway where the LID top - team were attacked , Julia crawls under the keep - out tape and begins looking for clues . Her search is fruitless until a falling stone catches her attention , and she sees the claw marks of the monster that attacked the top - team members still scarring the overpass . Someone yells at Julia , asking what she ' s doing there , and she flees in terror , wondering if Professor Marco was attacked by that kind of monster . Zuzu and Sora walk through the harbor , Zuzu claiming that she would have ended Sora ' s Duel a turn earlier ; since his opponent ' s monster only had 1500 ATK , instead of Summoning " Fluffal Bear " , he could have Summoned the 1600 ATK " Fluffal Leo " . Sora replies that he knows , but wanted to show Zuzu Fusion Summoning again , since it seemed like she didn ' t get it last time after all . Zuzu claims that she ' s got Fusion Summoning down , and she ' s practiced enough too . All that ' s left is to demonstrate her skills in a real match . Sora notes her confidence , and agrees , having been wanting another Duel for a while . As Zuzu tells him that he ' s on , Julia approaches them . Julia asks them if they know what ' s been happening in Paradise City . There have been repeated assault incidents by a mysterious Duelist , and all of the victims have been connected to LID . But no - one can say for sure , because everyone who was attacked has disappeared , including Professor Marco and the LID top - team members . She begs Zuzu to tell her where she can find the black - masked Duelist . Zuzu remembers her last meeting with the Duelist , and Julia believes that if she had caught him then , she might have been able to prevent the following incidents , all because Zuzu let him get away . Zuzu protests that she doesn ' t know anything , and Julia calls her a liar . The kind and gentle Professor Marco has disappeared , and he might be suffering somewhere . That ' s why Julia has to find him as soon as possible . She yells at Zuzu to hurry up and tell her where the Duelist is . Zuzu again denies knowing anything , and Julia asks why she was with him at the scene of the first incident . When Zuzu doesn ' t reply , Julia tells her that she ' ll force the answer out of her as a Duelist , unholstering her Duel Disk . Sora comments that an LID Fusion user should be no threat to Zuzu and she could take Julia out in a jiff . Zuzu is shocked , asking if Sora ' s saying that she should accept Julia ' s challenge . Sora points out that Zuzu ' s been saying for a while that she ' s had enough practice and been wanting to polish her skills in a proper match . Julia asks who ' s going to be taken out in a jiff , did Sora forget how badly Zuzu lost to her ? Sora replies that Zuzu is on a different level from back then ; she understands now that LID Fusion Summons aren ' t actually a threat . Incensed , as she view Sora ' s words as an insult to Professor Marco , the one who taught her Fusion Summoning , Julia challenges Sora instead . Sora protests that she shouldn ' t , as she ' ll just hurt her confidence even more . Julia yells at him to shut up , as LID is the strongest , and she ' ll make sure Sora doesn ' t forget it . " You ' re LID ? " a voice asks her . Everyone reacts in shock as Shay rushes forwards , pushing Zuzu aside and causing her to drop her Duel Disk and her cards , which spill over the ground . Activating his Duel Disk , Shay tells Julia that if she ' s LID , then he ' ll be her opponent . Sora frowns as Shay advances , and Julia backs away , asking if Shay is the culprit of the repeated assault incidents . Shay simply tells her to come , and Duel him . The masked Duelist leaps over a container , yelling at Shay to stop being so reckless , grabbing his arm . Shay yells his comrade ' s name - Yuto . Yuto removes his mask and he protests that he told Shay before that this isn ' t their battlefield and that these people aren ' t their enemies . Shay yanks down his scarf , retorting that this is " his " battlefield . In order to get Lulu back , he has to do this , and if Yuto tries to get in his way , he ' ll defeat him too . Julia contacts Kit and Dipper for aid , and as everyone else turns to look at her , Zuzu protests that they don ' t know if Shay is the culprit yet . Seeing her for the first time , Shay gasps , calling her " Lulu " and wondering what she ' s doing here . Removing his dark glasses , he asks if she managed to get away on her own , but as he presses her with questions , Yuto punches him in the solar plexus , immobilizing him . He tells Shay that Zuzu is not Lulu before Shay passes out . Yuto puts him over his shoulder as Julia asks Dipper to send as many people as they can . In the city , Dipper reassures Julia that Kit is on it now . Kit explains to an LID official that the culprit is in the South Warehouse District . Yuya , meanwhile , is reading a Dueling magazine in the street , musing that even Zuzu is trying to learn Fusion Summoning from Sora , so what should " he " do ? He throws his arms up and collides with Dipper in a crash . Dipper tells him to be more careful before both parties recognize one another . Yuya asks why they want him to apologize when they ran into him , and Dipper retorts that Yuya should also learn to be more aware of his surroundings . Kit breaks them up , and Yuya asks what happened . Kit explains that they found the culprit of the repeated assault incidents , the mysterious Duelist . Yuto picks up Zuzu ' s " Polymerization " card , and he comments that it doesn ' t suit her . Sora replies that that ' s too bad , but he doesn ' t like hearing that about presents that he gives to people though . He wouldn ' t mind showing Yuto just how amazing that card is though . Zuzu angrily tells them to cut it out , getting between them . The group suddenly hear Dipper calling Julia ' s name as he , Kit and Yuya run up . With Yuya in close proximity to Yuto , Zuzu ' s bracelet lights up and both Yuto and Shay are warped away before they others arrive . They ask Julia where the culprit is , and she gasps that he disappeared . Yuya asks Zuzu if she ' s okay , but Zuzu is in shock , stating that he disappeared again , and these people kept saying that she is and is not Lulu . Yuya asks what Zuzu is talking about , and Zuzu buries her head in her hands ; she doesn ' t know , she doesn ' t know what ' s going on anymore , or why her bracelet shines and they disappear when Yuya comes near . Yuya notices Zuzu ' s cards on the ground , and he picks them up for her , wondering why they ' re all thrown on the ground like this . He hands them back to Zuzu as LID arrive , Julia runs towards them and apologizes profusely . Sora comments that they should leave , and he gently guides Zuzu away , commenting that Yuya should hurry up too . Before Yuya can leave , Kit comments that he heard that Yuya needs two more wins to enter the Junior Arc League Championship , and wishes him good luck , though he comments that it might be impossible for Yuya . Yuya tries to asks how Kit knows about his wins and why he ' s saying that , but Kit runs off . Looking around for Zuzu and Sora , Yuya spies Zuzu ' s " Polymerization " card that Yuto dropped , and he picks it up . Featured Duel : Sora Perse vs . Unknown Duelist . Duel is shown from an unspecified turn . Sora ' s opponent control s no cards and has 400 Life Points . Sora ' s turn Sora draws " Edge Imp Sabres " . He then activates " Polymerization " , fusing " Edge Imp Sabres " and " Fluffal Bear " to Fusion Summon " Frightfur Bear " in Attack Position ( 2200 / 1800 ) . " Frightfur Bear " attack s directly ( Opponent 400 → 0 ) . Featured cards . The following cards appeared in this episode . Cards in italics debuted here .