Nakamura Asumiko manga
From Shoujo Addiction: Nanase Reika is known as the queen at her school. She doesn't take any orders from someone but when Akimoto Kaito, her teacher, transformed from a nerd to a hottie and ordered her to lick him clean after spilling juice on him... she suddenly followed him! What will happen to the relationship of these two? Contains 5 short stories with 1 extra.