One More:
At least one more person survives the killing game. It is either Sakura, Chihiro or Celeste alongside Alter Ego.
There may have been no class trial this time, but the chapter is mainly about Makoto and Byakuya, and eventually the rest of the class, trying to prove Toko is Genocide Jack. And their theory was correct, learning about how she kills her victims, how she and Toko switch with fainting and sneezing and how they don't share memories because one mind falls asleep as the other takes control.
Mondo doesn't kill Chihiro and only throws the dumbbell at the wall in an act of trauma and frustration, which goes against the rules and angers Monokuma. Taka enters the room, hearing a crashing noise, and is in shock of what is bound to happen. Before dying, Mondo shares his secret with Chihiro and Taka and tells Chihiro he's stronger then he thinks, because sharing your deepest darkest secret with someone really takes guts. As Monokuma begins Mondo's execution, Chihiro attempts to intervene, but is too late to grab hold off the bike. Chihiro is left devastated and comforted by Taka, who is in pain as well, and he blames himself for getting Mondo killed.
Chihiro later reveals how he fixed the laptop and made Alter Ego in the bathhouse where it was hidden to uncover any secrets to help them escape, which leads to Taka going nuts and Hifumi's approach. Right after Taka dies, Chihiro is encouraged by the voice of Mondo in his head and gets the confidence to tell Makoto his secret and how it's hit fault Mondo died. But Makoto tells him it's no one's fault. The mastermind made them do it. He can tell the others if he ever wants to, which he eventually does. To his surprise and relief, no one judged him. However, Genocide Jack has eyes on him because her victims are cute boys. Sakura and Aoi end up becoming his new protectors and help him get stronger, and he starts to get over pretending no to be a guy. Though Alter Ego was destroyed, Chihiro had built enough confidence despite the situation and live on for Mondo and Taka. In return for her protection, Chihiro comforts Aoi over Sakur, and he ends up thrilled to see Alter Ego save Makoto from death. After Kyoko saves Makoto, he tries to help Makoto solve the picture mystery, because he was the only one not fooled by it. Once escaping, Chihiro remains a helpful ally towards Makoto.
Sakura had in fact faked her death and was in hiding after discovering a way to the trash too and remained there for some time. She stays quiet, hoping her friends, and her crush, make it out. She makes a surprise return to help the others for the final case, which brings Aoi to tears of joy.
Celeste's little scheme didn't go as she had hoped. She didn't have enough time to kill Hifumi, and he ends up executed. Though she still acted defensive about the whole thing being her idea, she fails and is shunned by the others. But Makoto goes to see her and tells her not to let greed her in her way of living.
Depending on what scenario used, either Sakura, Chihiro or Celeste.
For the Ultimate Punishment, Junko puts herself into not just the already used executions, but every execution planned for the blackened, victims and survivors. All just as bizarre, unique and disturbing as each other. And thus, Makoto, Kyoko, Byakuya and the others graduate.
Additional Daily Life (Before the 3rd Trial):
After Genocide Jack causes Hifumi to spill black tea on Celeste's shoes, she is almost about to kill him until they are interrupted by Makoto. Seeing the mess, he wonders if he showed up at a bad time. However, Celeste says he showed up just in time for her to make a decision. She declares Makoto as her new servant, much to the surprise of him, Hifumi and a confused Jack. Makoto is unsure of this, so they settle it with a game of cards to see who will become or remain her dog. Though in a panic, Makoto wins and Hifumi remains the way he is.

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Dangaronpa Alternate
Mystery / ThrillerCover: Monokuma taking up most of the picture, Makoto Kyoko Byakuya Komaru Toko Hajime Chiaki Nagito Kaede and Shuichi together Summary: Groups of talented teenagers are lured into a killing game hosted by a robotic bear known as Monokuma where t...