Happy Lesson Advance
This is one series in a series of series, if that makes sense.. basically the short of it is, Hitotose Chitose, who had to live alone because his mother was always away at work (or somethnig like that), now lives with 5 teachers, whom are his 5 "mothers". But of course this relationshipal situation is unknown to the people at his school. It is basically an excuse to put 5 totally different parenting styles in one house. They are all interesting charectors though. Also there are a few loves stories here... but I won't spoil them all.
The Series includes
This particular series is about a child whom one of the mother's mothered before, and he/she is trying to levy her way back into the family.