It starts of with the main character walking in on a breakup between a guy and a girl. He can't get through as there is a fence so the guy helps him over the fence. The guy is know as a player yet both guys become friends and they hang out together the mc works at a pharmacy near the entrance of their university. It turns out that the 'player' never slept with any of his girlfriends as he found it unappealing. Thats all I remember sorry it's not much to go on ? ? It was quite a short manga no more than 7 chapters.

Found it (: Darenimo Iwanaide!

OMG thank you so much! ? ? ?