Setsuna Sanzenkai

* Visual Novel
* Anime (ISLAND)
* Anime (NEVER ISLAND)

**Setsuna Sanzenkai** (三千界 切那, *Sanzenkai Setsuna*) is the main protagonist of **ISLAND**. He is a young man who washed up naked on the sandy beaches of the island. He was rescued by Rinne Ohara and begins living in the employ of the Ohara family as their servant. He claims to come from the future to save the world, but cannot even remember who gave him the mission. With a mysterious confidence and optimism, he continues to smash every tradition on the island.

## Appearance

Setsuna appeared as a young man with shaggy, black, short hair. His eyes are narrow and black. He found himself naked when washed up without memory. Then, he was given an aloha shirt, short trouser and sandals from Taro Harisu.

## Personality

Setsuna has a mysterious, confident, and optimistic personality. He tends to speak his mind too openly and do dirty jokes, earning him the anger of the girls even though it's not serious, while becoming pessimistic when things go sour if not helped by someone, thinking it's all his fault.

## Plot

### ISLAND (Summer)

Setsuna awakes on land nude with only a mysterious CD with him. He later found Karen Kurutsu just before being send to the mainland, aborting the process then is taken to the station and tells them he has no memory not even recalling his own name or how he came upon the island, and that he is from the future.

Later on, he meets Rinne Ohara on the beach and he recalls his first name Setsuna. He then settled in with by living as Rinne and Kuon's servant. He then met Sara, who wanted to kill him to stop him interfering with the supposed past because she believed him when he said to come from the future, and Karen who wanted to flee her family to begin a new life in the mainland.

Later, he learns the truth about Rinne's past who couldn't accept that Setsuna wasn't "her" Setsuna in the end. While they make up after going to boryujima and Rinne letting go of her dead Setsuna, Rinne ends up drowning to save Setsuna, tired by swimming all day, leading him to go to the future with the help of Kuon and Momoka in a cold sleep machine.

### NEVER ISLAND (Winter)

Setsuna was transcended through time, but lost all his memories when he woke up in a snowy place. Then he was found by Rinné O'Hara, giving him the identity as an older brother of Rinné who had long disappeared and lived in the residence of the O'Hara family. He teamed up with Rinné to make a device that could 'save the world', derived from the desire from his chest who wanted to save someone and smash every tradition on the island.

During his time in never island he met an "adult" version of Sara ,Sarah that worked at the church helping the poor children, and another version of Karen, Karin that was a poor child without official identity, living in the backstreet with her mates, earning money by making sexual favors even at their young age. Due to Setsuna's meddling with this place's future, Sarah died in a fire after being branded as a witch and Karin died from soot blight.

Now having only each other, Rinné and Setsuna fell in love with each other, Setsuna realizing it was her that he ever loved and knew the name while waking up in Summer 1999. Before he departs using her machine, they had a fast mariage ceremony, him giving his collar to her. Sadly, while Rinné though it was a time machine she only built a cold sleep machine who trapped Setsuna for 20000 years.

### Midsummer (Second Island)

Setsuna wakes up again on the Island, this time retrieving all his memories fastly. He solved Sara and Karen problems by organizing a party with Sara, Karen, Kuon, Uran, Taro and Rinne where everyone, especially the 3 daughters, became friends, avoiding Rinne's fate and doom on the Island. But this time, remembering about his love Rinné, he couldn't chose to marry Rinne and woved to make Rinné happy instead.

When he confessed that to Kuon she went mad at him without him understanding at first, despite her still wearing Setsuna's collar, the proof of their mariage in the future, her identity as Rinné and her love for him. When he realized that Kuon was Rinné and that Rinne was not Rinné's reincarnation but his daughter, he went to told Rinne who seemed to have understood everything on her own, mostly by instinct and by the mutual love the always shared because they were family.

He then make up with his lover after giving her advice on the blueprints, rebuilding the relationship they had in the future. He then leaves for another future like he did dozen of times, meeting another Rinné in the future, while Kuon swore to build a time machine for him, so they can save the world by going to the very first past.

### Anime

#### ISLAND (first)

Setsuna woke up on land, nude and was found by Karen Kurutsu, He is taken to the station and tells them he has no memory not even recalling his own name or how he came upon the island. Later on, he meets Rinne and he recalls his first name Setsuna.

He was taken to work as a waiter as Rinne wanted to work with Setsuna to learn each of their memory loss. Setsuna only remembered that he must save a girl and killed a man. He later visited a shrine and met Sara Garandou, having a vision of her with bigger boobs and taller. Sara almost killed Setsuna because she suspected him as a time patrol who would stop her plan to go to the past soon, but stopped it after Setsuna explained his situation.

As the story went on, he helped Karen and Sara for each of their trouble. Karen to learn the truth of her mother and Sara to learn the truth about herself as she claimed that she was supposed to be a mother of her current self, with the photo of her mother doting her had the same appearance as her.

He soon helped Rinne to be able to hangout during the day after learning from Kuon that her illness of syndrome from the sun was a fake with the help from Sara and Karen. And then he developed feelings towards Rinne and she did so, believing herself to be the myth of love story of Rinne and Setsuna with the end that they were together.

However, the dark end that Rinne of the story would die because she committed suicide due meeting the wrong Setsuna of the story, leading to their relationship ending badly. Rinne later remembered the Setsuna who she was supposed to love sacrificed himself to save her from returning to the Island five years ago. Rinne took a boat and sailed to the island where she got lost before during the storm.

Setsuna followed her and saved her before she got sunk as her boat got flipped. They were dragged to the island where Rinne and her first Setsuna was lost in five years ago. During their time, Setsuna learned that there was a hidden lab and found that the first Setsuna had died due starvation. He informed Rinne and she was devastated. The latter then thanked Setsuna and wanted to have time before she could accept his death. Setsuna and Rinne soon had their time together and able to become the new couple.

But for unknown reason, it was just a dream for Setsuna. In reality, he failed to save Rinne and she was found to be dead. Kuon angry with him and blamed him for not protecting her properly. In despair, Setsuna concluded that he realized what he should have done; protecting Rinne and killing the memory of the first Setsuna inside her of her.

Not long afterwards, Setsuna was told by Kuon about that time when she found Rinne during those years she went missing. She found the time capsule and had Karen's mother study it. She suggested to Setsuna to freeze himself inside the capsule so that he could meet the one who sent him and create a new time machine so that he could go back in time and save Rinne. Agreeing to this, he sealed himself inside and waited for the moment where he would be free again.

#### NEVER ISLAND

He transcended through time, but lost all his memories when he woke up in a snowy place. Then he was found by Rinné, giving him the identity as an older brother of Rinné who had long disappeared and lived in the residence of the O'Hara family.

When the gathering of villagers to have the ransom, they were attacked by the children who wasn't tagged as civilians there. Sara Garland, the priestess made a plan and asked for Setsuna and Linne to share the ransom to them. However, Karin the leader didn't trust Sara and kidnapped Setsuna.

As Setsuna wanted to talk things with Karin, their hideout was attacked by the securities. The attack was merciless as it was only Sara, Setsuna, and Karin who were able to escape. Not soon afterwards, they were captured. Sara wanted to convince the soldier that what they did was wrong, but the head of the soldiers showed Sara that her father, the priest, was killed right in front of her. Setsuna realized that her family position was manipulated by the corrupt higher ups, planning to dispose of them as they knew about his plan. Linne saved them when they were taken and in the middle of being burned.

Saving their lives however lead to more tragedy as Sara hid the fact that she had gotten shot earlier and the bullet wound in her leg was deep. She died shortly afterwards from blood loss. Later, Karin died because of the sun syndrome as Setsuna was too late trying to find a doctor to treat her.

He soon remembered his true purpose and told Rinné everything. They soon fell deeply in love with each other, with Setsuna suggesting that they should marry despite Rinné still being 13 years old. They had their own marriage ceremony, a wedding ring, and had sex the night before Setsuna returned the past, hoping to change the world and save Rinne.

#### ISLAND (second)

As Setsuna returned to the past and with the ring left on his finger, he remembered everything immediately and he quickly solved the cases of Karen, Sara and Rinne, changing their fates for the better. But whenever he wanted to fall in love with Rinne, his feelings towards Linne got in his way. Rinne remembered that his ring was similar to her had mom and it shocked him.

He later talked to Sara about his problem and Sara showed a photo file about Ohara family. Kuon in that photo had the very same hand made wedding ring as him. Realizing that Kuon is actually Rinné and Rinne is his daughter, he went to find her. He begged Rinné for forgiveness and let him stay by her side again for real, but Rinné initially refused and told her story about what happened to her. However, Rinne helped Setsuna to convince Rinné and Rinné finally let go of her sadness and was reunited with Setsuna for good this time.

## Etymology

* The name **Setsuna** means "off" (切) (**setsu**) and "what?" (那) (**na**).
* Setsuna's surname **Sanzenkai** means "three" (三) (**san**), "thousand" (千) (**sen**/**zen**) and "world" (界) (**kai**).

## Trivia

* There is a possibility that Setsuna mistook his mission to kill a man as he might have to kill the person who will lead his future allies to their deaths.
* Due to the earth repeating itself, Setsuna have known several almost identical Rinné through time and so have several daughters who are all Rinne.
* Due to having no apparent origin, Setsuna's existence is similar to the Bootstrap Paradox in which information simply exists with no apparent beginning.