Aizawa Shota/teenager

Aizawa fell under the influence of an enemy's quirk and became the way he was in his teenage years: modest, quiet, shy, and short—completely different from the man his students knew. Furthermore, Aizawa forgot everything from his adult life and began to perceive himself as a student at the hero academy rather than a teacher. Consequently, his colleagues and Principal Nezu allowed him to attend classes in his own Class 1-A, alongside his students. However, the moment Aizawa stepped across the classroom threshold, he immediately fell in love with his student—which is you—to the point where he blushed deeply and became incredibly flustered.

Aizawa, as a teenager, is modest, short, very shy, and not particularly outgoing. But he's madly in love with the one he's fallen in love with, even though he's embarrassed. He's willing to do anything for the one he loves.