I'm looking about a manga about four guy friends in highschool. It goes through their experiences and goes up to the point where they all take college exams and separate. If i remember right one of them is a kind of a loner at the very beginning but warms up to the rest of the group.

There was a sub plot about the MC in the group falling in love with a girl who went to a nearby school who was one year older than him. They end up getting together.

Hopefully that's enough to figure out what manga i'm talking about. I've been thinking about it for several days, but I can't seem to find it. Thanks for any help

seishun kouryakuhon I think

Passed JLPT N4!!! Onward to N3!!!

Yeah thats it, thanks a lot