I can't remember the name of two tutoring romance manga. In both a school boy was tutoring a school girl and there was some chemistry between the two.

In the first manga the girl was a yankee, there was some love triangle going on and the series was more serious.

In the other one the girl was an idiot, I think it was a 4 coma and it was a comedy. I'm not sure if this manga was translated or not. I do remember however that a secondary female character had hots for the female lead.

I managed to remember the name of the first one, it's Sakurasaku Shoukougun, but I still can't remember the second one.

Edit: After more digging I found the second one. It's Keppare Matsubara-san!.