Ore no Oniku-chan

Kou Ryuugasaki is a heavyset high school student who harbors deep feelings for his upperclassman, Chiaki Hiiragi. Affectionately nicknamed "Oniku-chan" by Chiaki, Kou spends his days admiring him from afar. When graduation day finally arrives, Kou gathers the courage to approach his crush. Though he falls short of actually confessing his romantic feelings, his attempt ends in a devastating and humiliating rejection that leaves him heartbroken. Determined to change himself, Kou dedicates his time to shedding all of his excess weight, completely transforming his appearance. However, when he unexpectedly crosses paths with Chiaki again, he uncovers a surprising truth: his former senpai has always been attracted to chubby partners. To Kou’s astonishment, the two end up dating, but their new relationship comes with an unusual request—Chiaki actively encourages him to gain his weight back. Just as Kou begins navigating the complexities of this unexpected romance, a new complication arises. Chiaki’s ex-boyfriend suddenly reappears, threatening to disrupt their fragile connection. Caught between his own insecurities, his partner's unique preferences, and the lingering shadow of a past relationship, Kou must figure out what it truly means to be loved for who he is.