Could it be this one? http://www.mangago.me/read-manga/abiru_junjou/
No..it's not the one...sorry, but thanks anyway....
I remember one of the scene where the teacher made an stinky bomb experiment on a rice cooker... And another 1...his apartment was infested with cockroach and he has to stay at the uke(his student) house...
hi cherish not sure but this might be the one you're after Kagakushitsu No Ouji
Hi redpanda42...thanks for the reply...but unfortunately, it wasn't the 1...
It was a teacher/student relationship...
or perhaps this one Lovely Phantom
Tehehe...I'm sorry, it's not either...thanks for helping me again anyway...I'm going to read that though..thanks...
I'm looking for this yaoi manga where the seme is a teacher in an all-boys school(I think,not sure if co-Ed/all-boys) and he fell in love with the uke which is a student at the school...and also they are neighbours...the uke always at his sensei's house...can't remember much anymore...