Happy Lesson (2002)

Chitose is a teenage boy who has no parents, and lives alone. He gets bad grades and eats instant meals. Five of Chitose's teachers decide that they want to be the ones to raise him, they want to be his moms. Chitose is tortured daily by these "moms", and it seem they're trying to kill him! But in some strange way, he feels lonely when they're not around. But can he deal with their study crazy trials, "expiriments", whiny ways, and the students surrounding him at school at the same time?