Detective Karen on the Case

* WW
* JP

**Detective Karen on the Case** is an event in Re LIVE. It was the 13th event to take place in both the Japanese server and the global servers. It was accompanied by the permanent **Elementary Deduction Gacha**.

The event and gacha ran from April 25, 2019 to May 7, 2019 in the Japanese server and from August 16, 2019 to August 29, 2019 in the global server.

### Characters

* Karen Aijo, Claudine Saijo, Mahiru Tsuyuzaki, Hikari Kagura
* Yachiyo Tsuruhime, Liu Mei Fan, Shiori Yumeoji

### Synopsis

A mystery is afoot during the Seisho-Siegfeld exchange program as someone takes Karen Aijo’s precious umeboshi, leaving only a trail of letters behind for her to determine the culprit, and the mastermind behind the scheme.

### Full Synopsis

Each part of the event begins with a few lines from "Holmes Vs. Lupin," the play for the exchange program. Claudine Saijo, as Watson, recalling the greatest exploit of Holmes, a story previously avoided for its grand scale, but now committed to the page (stage). In real life, Mahiru Tsuyuzaki and Karen Aijo at Starlight Hall. Mahiru is looking for something, while Karen is on the phone with Michiru Otori, talking about how sad she is she won’t get to see Akira Yukishiro playing Holmes and Maya Tendo playing Lupin in person. After getting off the phone, Karen returns to the room and they talk about the upcoming exchange with Siegfeld. The other students are going off to Siegfeld, while Claudine, Karen, and Mahiru stay to work with the underclassmen from Siegfeld. Karen talks about how excited she is for the program, while Mahiru is more nervous, since they’ll need to set a good example of what Seisho is like. They talk about their parts for the performance of “Holmes Vs. Lupin” and running a scene together, but Mahiru says she can’t because she’s lost her copy of the script. Karen is shocked that Mahiru lost something, and Karen decides it’s a mystery that she plans to solve. They find Hikari Kagura practicing her lines, and Karen reveals that on the back of the script is a Suzudaru Cat sticky note, realizing that it’s actually Mahiru’s. Mahiru wonders how Karen figured it out, and Karen says that the only person who would have taken it is someone who went into their room, likely someone who would confuse the two scripts, meaning one of Mahiru’s two roommates. Hikari realizes she accidentally took the script thinking it was hers, and apologizes, and they comment on how Karen seems sharper than usual, which she credits to the new role. The next day, Mahiru wonders what to make for dinner since Nana Diana is at Siegfeld, and Karen approaches, asking if she has any “sinister incidents.” Mahiru wonders if she seemed distressed, but Karen says she’s just on the hunt for mysteries.
The first day of the exchange program, the Seisho students greet the three underclassmen from Siegfeld, Yachiyo Tsuruhime, Liu Mei Fan, and Shiori Yumeoji. Mahiru asks Shiori if she’s nervous and tells her not to be, and Mei Fan encourages her to keep her head high. They talk about how they have a lot to learn from each other, and Karen leads them off to see the dorm. Shiori asks Yachiyo if she should act like Mei Fan around the other Seisho students, and Yachiyo says she doesn’t care, but Akira would tell her to. They begin rehearsal after seeing the dorms, and before entering with the Seisho students Mei Fan complains about Yachiyo already losing things when they’ve just started. They do stretches between the schools, Karen and Mei Fan pairing up, Mahiru and Shiori, and Claudine and Yachiyo, who already calls Claudine by her nickname. While stretching, Karen asks about their Edel titles, and everyone but Shiori explains to her that the titles are all German words for gemstones, and that the edels get special roles in the performance of “Elysion.”

After vocal training, they discuss the play they’re performing, “Sherlock Vs. Holmes,” which is a rewriting of a combination piece between the detective Sherlock Holmes figure and Arsene Lupin, a famed thief from 20th century French literature. They all reintroduce themselves while also introducing their characters. Everyone is surprised by how well Shiori does at her introduction in spite of her timidness, and Claudine thinks that the exchange seems like it’ll be good, because they have good chemistry. During lunch break, they eat food made by Yachiyo and Mahiru. Yachiyo says she’s been learning to cook Chinese food from Mei Fan, but left the pineapples out because she doesn’t like them. Claudine comments on her being a picky eater, and to retaliate Yachiyo brings up Mei Fan not liking raw egg over rice. Karen tries to offer her secret technique for it, but Mei Fan refuses. Mei Fan says that Mahiru’s potatoes were also good, but Mahiru says that Yachiyo did most of the cooking. Mei Fan offers to make food for tomorrow, and Karen’s excited at the prospect of Chinese food two days in a row. Karen goes to get umeboshi that her mom sent to share with everyone, but finds it replaced with a letter, of someone claiming to be the Lupin who stole her umeboshi. She has three days to figure out who the culprit is, or her snack is forfeit. The Siegfeld students wonder if this is good, but Yachiyo tells them to play along, since Seisho went through all the trouble to stage this for Karen’s detective kick. Claudine says that the culprit could be a Seisho student though, and Mei Fan is indignant that they’d never do it. Karen realizes the real culprit is Moriarty, not Lupin, and immediately blames Mahiru, who tries to stop her because she only has one guess, and three days to try and figure out who it is. Shiori asks if there’s a second page to the challenge, and Karen finds one with a hint to figuring out the identity (and a second clue).

Karen is stumped by the clue, and Shiori wonders if it’s referencing Lupin’s supposed birthplace, the French commune. Karen is distressed at the thought of traveling to France, and they comfort her that it’s probably just a riddle. Claudine figures something out, but tries to tell Karen to figure it out herself, since she may be the mastermind. Karen begs her though, and Claudine agrees to help, and the two head off to No. 953. The Siegfeld students wonder if it's really alright to be doing this, and Mahiru says it’s fine, since Karen’s been dying for a mystery to solve. She gives them all maps of campus. Mei Fan tries to go off to practice, and Mahiru asks Shiori and Yachiyo if they’d like to have tea, which Shiori agrees to, wanting to ask about Mahiru’s portrayal of Moriarty. Mei Fan also wants to ask Mahiru questions, and backs out of rehearsing alone to have tea with them instead, in spite of Yachiyo’s teasing. Shiori ends up preparing the tea while Mei Fan washes the dishes, and Yachiyo says she needs to pick something up at a shop and plans to get it while she has the downtime. Elsewhere, Claudine takes Karen to the library, figuring that what the letter was referring to was the 953 section, 950 being French literature, and 3 meaning fiction in the catalogue code, finding the book *Arsene Lupin*. Karen is impressed by Claudine’s detective skills, and inside the book they find another envelope with two jewels, a red and green one, as well as a second hint.

The next day, while getting ready, the gems finally click in Karen’s brain and she lines them up with their respective Edels, Shiori and Mei Fan, determining that Lupin is Yachiyo. Yachiyo is impressed with how quick Karen got it, but refuses to tell her who the real mastermind behind the game is, since that would ruin the fun. Claudine points out that this brings down the list of possible suspects by one, since Yachiyo now can’t be the mastermind, and they struggle to figure out what the empty envelope in the nurse’s office means, but Yachiyo is confused by it. While they’re talking, Shiori and Mei Fan arrive, wondering why it looked like they were interrogating Yachiyo. They explain the situation, and Mei Fan is shocked Yachiyo would do that while Shiori wonders about the empty envelope being a clue.

Later, during a break in practice, Shiori returns from the faculty office, able to find her way because of the map Mahiru gave them the day before. Karen asks Shiori if she’s feeling okay, because her movements seem stiffer than the day before, but struggles to say it directly like Mei Fan tells her to. Nobody else seemed to notice anything, but Yachiyo is curious to hear more, because Karen is weirdly observant about these things, and thinks she might be able to use it to determine the real culprit. Mei Fan swears that it’s not her, while Mahiru and Shiori are quieter.  Claudine talks to Karen alone later, thinking that the mastermind is Mahiru. They both agree about it, but can’t find any concrete proof, and talk about the empty envelope, asking for Claudine’s help to determine the culprit.

On the final day of the exchange, Karen finally announces who the culprit is, shocking everyone by claiming it was Shiori. Shiori admits to taking what was in the final envelope, but denies being the mastermind. Karen lays out her logic, that Yachiyo had left the third clue when she claimed to get something from the store, and someone had moved it after. Shiori found the note and tried to read it to see what was on it, but panicked when Karen and Claudine came into the nurse’s office and hid it instead, feeling too nervous to admit to the truth since they seemed so excited about the empty envelope. The final clue is a collection of statements, one of which is a lie that Karen has to determine. They work together, and Karen determines which statement was a lie, and deduces that the real culprit was Mahiru. Mahiru is impressed, and Karen says she was also able to figure it out because Mahiru met Yachiyo a bit before while getting groceries, and the two had come up with the plan together. They piece together the parts of the weekend where Mahiru and Yachiyo were acting differently to get parts of the mystery in. The event ends with Karen cuffing Mahiru.
## Gameplay

Playing stages allowed the user to obtain evidence, which could then be used to fight event bosses, including the event limited **White Trickster Thief** and **Blue Trickster Thief**. Event stages had an increased drop rate for evidence.

Defeating event bosses allowed the user to obtain event points to unlock event stories, obtain 3✰ Watson Claudine Saijo and her corresponding Potential Crystals, and **Gold Monocles** and **Blue Monocles**. These could could be used to purchase items such as the 3✰ Detective Karen! memoir in the event limited **Holmes Shop**.

Stage girls released for the event allowed the user to inflict greater damage on the event bosses. Damage dealt to each boss was not carried over in subsequent fights, so each boss had to be defeated in a single turn.

### Challenge from Arsene Lupin

The event also featured the mini game "Challenge from Arsene Lupin", in which Arsene Lupin Yachiyo Tsuruhime transformed into another stage girl and the user had to find which one of the three theater sprites was the impostor by looking at the character's movements. Bond items were given as a reward depending on the number of guesses it took to find the impostor.

## Stage Girls and Memoirs

### Event

* 3✰ Stage Girl
* 3✰ Memoir

**3✰ Watson Claudine Saijo**

3✰ Detective Karen!

### Gacha

* 4✰ Stage Girl
* 4✰ Memoir
* 3✰ Memoir

**4✰ Sherlock Holmes Karen Aijo**

4✰ Challenge for the Detective

3✰ Present for the Detective

### Other Gacha

* Brilliance Fest (1)
* Brilliance Fest (2)

**4✰ Professor Moriarty Mahiru Tsuyuzaki**

**4✰ Arsene Lupin Yachiyo Tsuruhime**