Yachin Hanbun no Ibasho desu

From Shinmakoku Scanlations:

1-3) A Place for Half a Rent
Shiraishi, a hardworking college student who smiles even when he's upset, is openly gay. His family and coworkers have a hard time accepting him, with the exception of his part-time job manager, Kanzaki, who doesn't smile even when he's happy. When Shiraishi can no longer force himself to keep living with his friendly but unfaithful boyfriend, Kanzaki makes him an offer: “Want to come to my place?”

Shiraishi accepts the friendly offer, which may have been made with some more-than-friendly intentions.

4-5) I'm Serious in My Own Way
Yukito Shibata is in a pickle. He has 1... no, 2 problems! His ex-boyfriend, Yoshioka Seiji, wants them to come back together, but it was Yoshioka who betrayed him in the first place. So he's having second thoughts. Now his step-nephew, Utsui Keigo, confesses his love for him! Keigo is 7 years younger, but he's very persistent. Which one should he accept? The whole story is told from two points of view. The first part is from Yoshioka's point of view, and the second part from Yukito's point of view. A sweet story about letting go of an old love and finding a new one.

6) Don't Be So Strict
Is it so easy to have an affair? Megumu wonders in pain, when he finds Keiichi has cheated on him for the fifth time in three years. Being poor, with no money and only a part time job, it's already hard enough for him to keep living, and taking care of Keiichi's needs. But he runs away from it all... just to learn - the hard way - of how an affair can blossom, and what consequences it might bring! Will the experience keep their relationship alive, or will it separate them in the end? A romantic story about how a love can endure even the greatest ordeal in life.