Houkago no Aurora

Saki Manaka, a popular high school student, falls in love at first sight with her Chemistry teacher, Kousuke Tsuge, after being saved from insistent upperclassmen suitors. Tsuge-sensei is popular amongst the students as a teacher and a handsome man. Manaka starts pursuing Tsusge-sensei until she finally becomes his secret girlfriend. There is only one condition: both of them have promised not to touch each other until she graduates. Will they be able to keep their promise?

Note: Published in in The Hana to Yume 2013-12-1 and 2014-06-01 as two different one-shots under the same title