i dont reallly remember the detail, the FMC (student) marries the MMC (teacher), i think it's OFFICAL (the marriage that is) but they hide it from people. i dont remember much but i do recall reading a snippet from the manga, someone holds the FMC and then the MMC comes out and say "that's my wife". i know it's a bit difficult with how little information i provide but please do help me, telling similar themed manga (student-teacher) might also help. thanks in advance

Faster than a Kiss