Kimi wa Yotsuba no Clover

High school student Uichi was once a cheerful youth with bright aspirations of becoming a veterinarian, but severe, relentless bullying from classmates pushes him to the brink of despair. Just as he contemplates ending his life, his childhood friend Yotsuha unexpectedly transfers into his school. Loving, fearless, and intensely devoted to the promise they made as children, Yotsuha inserts herself as Uichi's steadfast protector, standing between him and his cruel tormentors. However, as Yotsuha unleashes chilling, calculated retribution against anyone who harms him, Uichi realizes that her sudden return conceals dark psychological secrets and inexplicable foreknowledge.