Katsumi Kamado transfers into Class 2-A at U.A. in the middle of the school year, and she brings more secrets with her than she is willing to share. Her new classmates have survived a war and have stopped letting anyone close, Katsuki Bakugo above all, who sees nothing in her but a rival. But the longer the two of them are forced to train together, the harder it gets to keep it that way. When Katsumi's past catches up with her, she has to decide who she trusts with the truth. Volume 1 of the Between Two Rivals series.

Katsuki is struggling with his feelings toward Izuku, trying to figure them out. While doing this, he ends up treating Izuku like shit. Katsuki is obsessed with Izuku, and he doesn't realize it. In his longing for deep connection and forgiveness from the one person he has a real relationship with, he doesn't want to let him go. In their last year of middle school, Katsuki realizes his mistakes and tries to fix things. He becomes vulnerable with Izuku and begs for forgiveness. A short story based off of the song "All i want is you" By Rebzyyx