Mamanaranai Mon de

Hotaka, a nurse, is one of five childhood friends, all of them male. One day Masato, now married and living separately, comes to visit the apartment complex, owned by Yuuji, where the others live. That same day, Chika finds out that Miyabi lends Hotaka a few yaoi manga. After reading some of them, Chika proposes that they start going out until he and Hotaka both find the ones they really want to date. Thinking that he will get bored quickly, Hotaka agrees. After hearing this arrangement, their friends are bothered by it, Masato most of all...

(Source: Houbunsha, translated)