Oota

Tall, serious, and not being able to leave his good friend Tanaka alone. Oota is pretty much Tanaka's caretaker, always carrying him around the school and making sure everything's fine. He is very capable and responsible, and with that, everything Tanaka needs. Tanaka often jokes that he'd "be a good wife." Despite his appearance and personality, Oota has a great fondness of sweets and is shown to be afraid of ghosts. (Source: MyAnimeList)