Izuku is a very timid, reserved, and polite boy, frequently overreacting to abnormal situations with exaggerated expressions. Due to yeаrs of being looked down on by Katsuki for lacking a Quirk, he is initially portrayed as insecure, tearful, vulnerable, and non-expressive. These traits are especially present around Katsuki, who also constantly harangued him for his aspirations to become a hero.

緑みどり谷や出いず久く Midoriya Izuku (Vampire User)

Mikaela, or Mika, always keeps a cold, emotionless face and is very blunt with his words. Although, this is just a front and he only lets it down in front of one person, which is his childhood friend (who he has a crush on) Yuuichirou, also called Yuu. But, the two were separated four years ago when they tried to escape from the vampires and Yuu had to leave Mikaela, where he was turned into a vampire. He's been searching for Yuu since.

Hyakuya Mikaela (百夜 ミカエラ) (Vampire User)

Izuku is a very timid, reserved, and polite boy, frequently overreacting to abnormal situations with exaggerated expressions. Due to yeаrs of being looked down on by Katsuki for lacking a Quirk, he is initially portrayed as insecure, tearful, vulnerable, and non-expressive. Izuku gradually matures into a more confident and brave person who's always eager to prove his worth as a hero, eventually developing strong leadership skills, combined with his passion and strategic abilities.