Main installments: Danganronpa: Trigger Happy Havoc | Danganronpa 2: Goodbye Despair | Danganronpa 3: The End of Hope's Peak High School | Danganronpa V3: Killing Harmony
Spin-offs: Danganronpa Another Episode: Ultra Despair Girls | Danganronpa S: Ultimate Summer Camp
Interactions between Trigger Happy Havoc cast
- Strangely, Celeste and Hifumi get a slight Friendship Moment at the end of Celeste's route, when the option "I'll have milk tea, Hifumi" is chosen. The way only she can, Celeste both insults and compliments Hifumi by telling him she'd be happy to let him be one of her butlers if he were to reincarnate as a handsome vampire (Hifumi politely turning down the offer, as he'd prefer to reincarnate as an anime girl) and afterward, Celeste is stated to be quite pleased with the tea he made her.
Interactions between Goodbye Despair cast
- Teruteru being sincerely concerned for the Ultimate Imposter's health and trying to get him to eat healthier.
- During the summer festival, Hiyoko makes miniature clay figurines to sell, including one of Mahiru's camera. Mahiru appreciates her effort and says that she can tell Hiyoko paid great attention to detail with this one and that it looks just like the real deal.
Interactions between Ultra Despair Girls cast
- Komaru and Toko have a LOT of Friendship Moments in this game. Including:
- Right off the bat, Makoto notes in the prologue that Komaru will likely be happy to see Toko again and Komaru confirms that this was what she was looking forward to most about the trip.
- Toko and Komaru getting shaved ice together. Toko is utterly floored at the idea of sharing with her, but is also quite happy.
- Genocide Jack and Komaru having fun together on the beach, even splashing each other with water.
Interactions between Killing Harmony cast
- Shuichi and Kaede dancing together toward the end of Kaede's route.
- Miu being Monotaro's "mommy" returns. It's quite adorable to see Miu being tender and affectionate towards her "son".
- Kaede has the patience to bear with Miu's antics to the point where she is willing to stay around with her because Miu does not have any friends. It reaches a point where, in Miu's "My Future" event, she invites Kaede over to a sleepover, and Kaede has expressed interest in trying out Miu's While Lying Down series, something which Miu admits is a first.
Cross-game interactions
- Kiyotaka and Nagisa bond over talking about political statuses and think about teaming up to make the world a better place.
- Gonta bonding with The Warriors of Hope. After all they have been through, they deserve to have at least one adult friend.
- For that matter, The Warriors of Hope get at least one friend outside of their group, other than Gonta, with Jataro becoming friends with Kazuichi, Nagisa with Kiyotaka and Ryoma, Masaru with Mikan and Gundham, Kotoko with Sayaka and, unsurprisingly, Monaca with Junko.
- Teruteru's interaction with Hiroko, which leads to them both talking about Teruteru's mother.
- Mukuro and Kokichi going into Shipper on Deck mode for Makoto and Sayaka. Keep in mind that Mukuro also has a crush on Makoto.
- Celeste is shown to have a friendly dynamic with Chiaki, whom she asks to teach her how to play gambling-based video games and who's also shown to admire Celeste's willingness to dream big for her future.
- Leon, Kyoko and Chiaki all trying to help Kirumi to wind down from her workaholic attitude and to relax a little and enjoy herself since they are on vacation. Chiaki in particular has a specific request when Kirumi agrees to play games with her and that's not to treat it as a job, but to be able to enjoy gaming with her.
- Kaede and Izuru had a scene in V3's Ultimate Talent Development Plan where she invited him to come back and listen to her play the piano, hoping that one day she'd be able to move him with her music. The two have multiple scenes together in Izuru's route of Ultimate Summer Camp, implying he did and they became friends, and it ends with Izuru trying his hand at composing music after being inspired by watching Kaede and Ibuki perform together.
- Mahiru and Tsumugi being genuinely concerned about Hifumi's health, inspiring him to try eating less junk food.
- Kaito leaving a cooler box full of cold drinks and ice cream behind for the girls when it's their turn to use the hot bath which Kyoko, Aoi and Sayaka find.
- Byakuya genuinely thanks Komaru for being there, since Toko/Jack would frequently hang out with her and that caused them to not annoy him nearly as much.
