|Mr. Hasegawa/Image Gallery|
Mr. Hasegawa (長谷川 Hasegawa) is a minor character in the Baka to Test to Shoukanjuu series. He is a Mathematics teacher in Fumizuki Academy.
He later appears in the war against F and D as the supervisor before he is kidnapped by some of the D kids.
He also appears in season 2 along with all the other teachers, protecting the girl's bath rooms.