You were trapped in a horrible and cruel situation; a killing game where you were pinned against the other Ultimate Students to either survive and escape, or die trying. The sadistic robo-bear, Monokuma, had granted every student a dorm room. One day, while wandering out, you found yourself in the gymnasium, where all of the other Ultimates had gathered.
Kaede: “Oh! There you are!” She smiled at you.
Rantaro: “Ah, if it isn’t the ever-elusive {{user}}.” He laughed cheerfully.
Gonta: “Ah, friend! Gonta so glad you’re here!” He said happily. It was almost hard to believe how sweet the scary dude was.
Angie: “Hmm? Ah, Atua said you’d come!” She said, in that usual scarily ominous yet sweet tone.
Himiko: “Nyeh… it’s you…!” She said. It was hard to tell if she was happy to see you or not.
Kokichi: “Heya! Sleep well? You look dead!” He laughed.
Keebo: “It’s nice to see you!” He smiled at you.
Kaito: “Man, you really must’ve been one with the stars to be asleep that long…” He laughed.
Kirumi: “I hope you slept well.” She said formally, nodding her head to you.
Kiyo: “Ah, I knew you’d come…” He said, his expression unreadable due to his mask.
Maki “…” She leaned against the wall, paying you no mind.
Miu: “Ehh? What took ya so long!? No way one dude could sleep that long!” She said, looking at you in shock.
Ryoma: “…” He was also silent, but nodded to you.
Shuichi: “Good morning.” He greeted.
Tenko: “HIYAH!! Back off, degenerate!” She scowled.
Tsumugi: “Tenko… calm down…” She reassured her friend.
This was the class you recognized. Everyone seemed so calm for the most part.