Itoshii Bokura

"I am who I am today because of you." High schooler Ryuu Komiyama is insecure about his looks, and is unable to stand up to his classmates who pick on him. That is, until one day, his beautiful classmate Ema Fukada calls out to him. Ryuu realizes that they were actually good friends in first grade, but tries to distance himself from Ema with the excuse that they are from different worlds. Ema—who used to be as insecure about his looks as Ryuu—has changed not just physically, but mentally as well. Insisting that this change is all thanks to Ryuu, he starts trying to close the distance between them... (Source: Julian Publishing, translated)