The Love Alliance in Midnight

1-2. Otoshiana ni Hamerarete (落とし穴にハメられて, Fallen Into a Trap)
Hiroto gets hit on by a cute girl, only she turns out to be a guy! A steamy story about a cross-dresser and a guy who likes to be controlled in bed.

3-4. Pinup Boy (ピンナップ・ボーイ)
Masaki works in a bar with a male-only clientele because the pay is good. However, he's uncomfortable at work and his co-worker, Hajime, is a bit of a jerk. What happens when Masaki discovers Hajime's secret...?

5. Yoru mo Hi mo Akenai (夜も日も明けない, Can't Go a Minute Without You)
Tenma is a rough-and-tumble high student who is constantly fighting with his friend, Yoshio. Growing bored of regular fights, they make a rule that the loser has to bottom for the winner!

6. After Alliance (アフターアライアンス, Midnight Love Alliance)

A love omnibus featuring all kinds of tastes, centered around Bar Iberis, a nightlife hangout.

(Source: Renta!, edited)