Kōhei Matsudaira

**Kōhei Matsudaira** (松平公平) is a guest character from Otogiriso and is a regular college student appearing in the sound novel Kirigiriso. He met Kyoko Kirigiri while driving back to his home and explore an abandoned mansion off in the forest with her.

## Appearance

He is described by Kyoko as looking like an average college boy. Since he described Kyoko as a "small high school girl", it's assumed that he taller than her. In his driver license photo, his hair length looks to be above shoulder height.

## Personality

Because of the choices the player makes in the games, his personality to can range from merely friendly, to being very perverted.

### Otogiriso

Assuming Kōhei still has the same/similar backstory, he has been attending college with his girlfriend Nami Kikushima. In the events where Nami comes driving with Kōhei, the routes of the game Otogiriso would occur.

### Kirigiriso

In the events where Nami does not come driving with Kōhei, the routes of the game Kirigiriso would occur. One night while driving home from college, he took a shortcut he never used before. When he looked down, he almost ran over Kyoko. He offers her a drive since it was raining. After looking him up from his driver's license and his car number, she decides that it's safe and joins him. Their drive ends up becoming ruined when Kōhei's car crashes into a tree as a result of an incident with fallen trees nearly crushing them. They both manage to escape as his car bursts into flame, thus forcing them to wander into the forest together. They came to the mansion that Kyoko was called towards and both go inside for some investigating. Inside is filled with many plants, and Kyoko mentions a rumor about the whole mansion being a place where no one leaves. Essentially, a man eating mansion.

As the they investigate they wind up meeting Kyōka. She first meets Kōhei, slipping a piece of paper to him that tells him to trust her. When Kyoko tries to interrogate her, she runs away further into the mansion, leaving Kōhei to make a choice between trusting her or Kyoko.

#### Plant Girl Ending

If he chooses to trust Kyoko, they both give chase in trying to find Kyōka. Their search leads them to meeting one of the incomplete creations and Kyōka. The creature captures Kyoko and Kyōka demands that Kōhei leaves her behind. Kōhei refuses and frees Kyoko. Kyōka claims she just wants to live peacefully, but Kyoko rebuttals its the opposite. She deduces the true intentions of the mansion inhabitants of murdering detectives that they lure there. Kyōka remarks that she won't abandon them.

Fearing that Kyōka was getting attacked, various plants attack Kyoko and Kōhei, who make a run for the exit. Kyōka appears in the hallway and has the plants tie up Kyoko and Kōhei. At the last moment, Kyoko gives Kōhei a flask they found in the mansion's hidden room with an unknown liquid and tells him to throw it at Kyōka. When it hits her, Kyōka screams and her skin dries up, turning a sickly green. Her eyes also turn red. The liquid that was thrown on her was herbicide. The mansion plants loose their grip on Kyoko and Kōhei, and they both leave the mansion through a window with bent bars. As they both get away, Kyōka continues screaming until she abruptly stops. Kōhei looks back and sees that the mansion is gone. In place there is a large tree. With Kyōka, the client, gone Kyoko has no reason to stay there and thus allows Kōhei to escort her out of the forest.

#### Plant Girl True End

In this end, when Kōhei comes backs with a kitchen knife to cut a rose wall and sees Kyoko is missing, he has a choice of searching for her in one of the guest rooms. If he enters it, he finds Kyōka's diary entries of her past. He keeps them with him.

If Kōhei chooses to trust in Kyōka, he leaves Kyoko in an attempt to talk with her. Once he arrives in the room with the plant/human hybrids, he meets Kyōka. She explains that the DNA of these Hybrids were taken only from exceptional and talented people, since only the exceptional DNA could have survived. She then tries to feed Kōhei to the hybrids, but Kyoko intervenes and saves him. Like in the Plant Girl route, both get captured by her plants out in the mansion's hallway.

This time, Kōhei remembers Kyōka's diary pages in his pocket and takes them out. He tells her that she can go outside the mansion with him and Kyoko and that they can have fun together. Kyōka says that she can't do that because of the amount of people she killed for her plant siblings. Kyoko responds that even if she really done awful things, if she's willing to change, there was still a chance for her. While touched, Kyōka forces them out of the mansion as she sets it on fire. As they are clear of the burning mansion, they see her body lying out of the mansion thanks to the hybrids carrying her out, before they themselves die. However, it is too late as Kyōka was already dead. She and the hybrids were buried before Kyoko and Kōhei left the scene.

Six months later, Kōhei returns to the mansion, finding a mass of white flowers surrounding one, giant, one. A flower which Kōhei mistakes for Kyōka.

#### Bad Ending 1

This bad ending happens near the end, were Kōhei has a choice to leave the mansion or help Kyoko. In this end, Kōhei takes up Kyōka's offer to leave the mansion and leaves Kyoko behind. Some time afterwards, Kōhei hears a knock on his dorm door. He looks through the door hole and sees Kyoko outside. He panics because he thought that she died in the mansion. Then he remembers that it could be Kyōka, and thinks she could be coming back to kill him because he knows the mansion's secret. As the figure opens the door, Kōhei asks it if she is Kyoko or Kyōka. The game ends as she begins to answer his question.

#### Bad Ending 2

This bad ending happens near the beginning, were Kōhei has a choice of picking up Kyoko or not. In this end, Kōhei doesn't pick Kyoko up from the road and keeps driving. He then drives into Kyōka the same way he did with Kyoko. Kyōka then gets into his car and he keeps on driving. Suddenly she takes the steering wheel and crashes the car into a tree. Kōhei is barely conscious as a suit of armor carries him from his car to inside the mansion, and Kyōka feeds him to the plants.

#### Extraterrestrials vs Earth Plants Against Invaders Defense Force End

In this non-canon alternate route, Kōhei's car is destroyed by what was thought to be a meteorite, instead of being destroyed by a car crash. As they reach the mansion, instead of dealing with plant/human hybrids, they instead had to deal with the Rhinogradentia, a species of hostile aliens that have begun to invade Earth. They were nearly attacked by one before Santa Shikiba, the Ultimate Botanist, kills it with a spear. He invites them inside and reveals that he's been studying these creatures for a while and seeks to repel them as the leader of the Earth Plants Against Invaders Defense Force. Though his only other member was Kyōka, who he saved in this route, but has made up for it with his own modified plants being used to repel against the Rhinogradentia. Santa recruits both Kyoko and Kōhei to the defense force.

However, the mansion is soon swarmed by the Rhinogradentia and they are forced to retreat into the greenhouse with Santa blowing up a group of them and supposedly dying only for him to come back to the group since the explosion wasn't strong enough to kill him or even do much harm.

The plan they come up with is Operation: ABC (Absolute Bomb Cone) gathering Santa's bio-genetic pine cones and gathering as much of the Rhinogradentia in one place as possible before lighting the cones on fire and causing them to explode, lighting the mansion of fire. The plan succeeds and the mansion begins to burn down. However, Santa chooses to stay behind and allow the others to escape, supposedly, dying in the fire.

However, later on after the mansion is burning down, its revealed (following Kyoko noticing that Kyōka wasn't actually attacking the Rhinogradentia and how her eyelid blinked upwards) that Kyōka was, in actuality, an alien spy for the Rhinogradentia as the **True Super Galaxy Level Invader**. She claims that her side is doing everything to protect the Earth. She prepares to kill Kyoko and Kōhei with her mothership's laser, when Santa reappears. He points out she'll destroy her sakura tree if she does so, and that won't she stop all of this to comrades with him again. She hesitates but responds that its too late to stop the laser. Santa takes the laser that was about to hit her tree and that selfless act convinces her to call off the invasion, and weep for the seemingly dead botanist. Once it was revealed that Santa also survived that, she tearfully hugs her leader, agreeing to make him sakura tea again.

#### Bad Ending 3

Within the team, Kōhei volunteers to deliver the little Rhinogradentia to the Rhinogradentia group. As the team walks toward the group, Kōhei steps ahead with the little Rhinogradentia. He puts it down and it walks towards the group. However, the Rhinogradentia rush ahead, crushing it. The team runs away from the charging aliens, but Kōhei gets caught in the rampage and dies.

#### Extra Scenario Ending

In this joke scenario, Kyōka is the adopted younger sister to Kyoko and has been looking after her older sister who had been asleep for many years. She claims that the hardships from her detective life had lead Kyoko to abandon it and play games in the mansion instead, and making money off her re-selling items. However, Kyoko then decided to just lay in bed asleep, thus requiring a person to come wake her up with a kiss. Throughout this time, the asleep Kyoko had created illusions to lure in other people, but only Kōhei had made it this far. Kyōka urges Kōhei to go through with it and has a video camera prepped to record it. At the end of the route, it's revealed that this was all Kōhei's dream after getting into a car wreck.

#### Plant Girl Another End

In an alternate timeline, after the events of the Plant Girl True End, Kōhei visits Kyōka's grave and sees a girl that looks exactly like Kyōka standing there. Kyōka didn't recall anything besides the forest and plants, but did sense that she felt like she knew Kōhei and agrees to go with him. As Kōhei fills her in on the details, they run into Kyoko by chance who also agrees to talk with Kyōka about what happened. Kyoko and Kyōka quickly grow to like each other, and all three end the route by going shopping with each other.

## Relationships

**Otogiriso:**
#### Nami Kikushima

While Kōhei and Nami do occasionally fight, they are basically a normal boyfriend/girlfriend couple. Kōhei loves her very much, and goes out of his way to protect her on multiple occasions.

**Kirigiriso:**
#### Kyoko Kirigiri

Depending on the players choices, Kōhei can go from either friendly or to very flirty and even perverted towards Kyoko.

### Trivia

* His name Kōhei (公平) means "Fairness" and (松平) means Matsudaira "Peaceful Pine".
* The player can change Kōhei's name to whatever they'd like to in-game.
	+ In the SNES version of Otogiriso he was nameless, but character could input their own name. The PS1 version of the game gave him the default name of Kōhei Matsudaira, as a reference to a quote in the game Machi.
* Kōhei is one of the few guest characters that appear in Danganronpa that is not from the Kagami Family Saga. The only others being 'K', Norman and the Rhinogradentia.
* In the Otogiriso movie, Kōhei is played by Yôichirô Saitô.