Nanagane Gakuen -Ryokou Bu-

Main character Kei Tokisaka, is a second year student attending a travel club. He is an ordinary student, but he has a secret that he can't tell anyone about. He adores club members who are all beautiful girls: the beautiful head of the club, the idol girl, the honor student's childhood friend, and cute younger students. The life of the club is filled with excitement, anxiety, humor and romance.

[From vndbreview]