Sefure no Senpai

Yuuma (virgin), who is planning to debut in university with a new image, gets to take home Nana-senpai, the unreachable flower from his college club!?
"‘Cause, I'm looking for a friend with benefits right now."
In contrast with Yuuma's bewildered mind, they turn out to have great physical chemistry.
(Source: BookLive, translated)