Rikei Danshi. ~Bokura no Rikashitsu~

From LuffyNoTomo Translations:

Hazeru is a short cute guy, Genki is a good looking athletic guy, Kuuya is a popular hot guy and Ginjirou is shy but really good looking...what do these 4 have in common? They are all part of the science club!

Hazeru is the club president & close friends with Genki, he is so athletic that he gets paid by the sport clubs for his talent in order to get their club money. Ginjirou is the one that does most of the experiments. Kuuya thought that Hazeru was a girl & hit on him but even though he likes girls he still likes Hazeru, so he joins as the club's model in order to get people interested in their science club.