I'm looking for a manga about a student with a relationship with the teacher. It was a series of relationship between the students and the teachers (The teacher was always female). The first story is about a scary female teacher and her student. The first encounter was in the toilet. iirc they become in official relationship after the student graduated.

It has two manga connected with it. The first one is with golden something on title. Then the second one was continuation of the story with the first one in the early chapters.

I've forgot the title of both, I'm searching for golden time but it was different manga.

Thanks in advance.

Golden Times and sequel Nande koko ni sensei ga!?.

~4400 manga completed
~1700 ongoing...

This is it. Thanks a lot mate.