From Jigoku:

Katsuhiko and Youji enjoyed their life of living together. Suddenly, Youta, Youji’s son, came to visit and stayed with them. Katsuhiko’s not happy about it at first; then eventually he saw himself through Youta, a child who’s grieved over his parents’ divorce…

Besides the main story, this book also enclosed two stories about Katsuhiko’s past relationship with other men.

Makita Tsukasa and Himuro Takashi have been best friends for a long time. All the girl suspect that they are gay because they are always together, but they both deny it. But when Makita get a confession, Himuro acts strangely. A rumor spreads around that Himuro and another guy kissed. Is this the truth or is it simply girls gossiping about what they wish to happen?

1-2) Kumo no Uede Kiss wo Shiyou
Young, earnest flight attendant finds himself attracted by the dashing pilot... whose charm also makes the young uke insecure. Will this sex-based relationship survive? Also, why is the dashing pilot kissing someone else after sleeping with the uke?

3-4) Zettai Fukujuu
On the outside Nachi is a student living with his cousin Shinya for free in exchange he's the "maid". What no one knows, not even his friend Kanda, is that he's also Shinya's sex partner. With Shinya's rude, arrogant behavior to Nachi how long will this "master" and "servant" relationship last? How long will Nachi be able to keep the truth about his relationship from Kanda?

5) Kumo no Uede Kiss wo Shiyou extra

1-2) Taken Care of You
Chiaki is the new coach for the soccer team. Aiba, a star player, is doubtful that anyone as small as Chiaki can teach him anything. Aiba already cuts practice and doesn't listen to anyone. Chiaki's work is cut off for him, but he really wants to teach Aiba. But teach what is always a question.

3) Leave My Angel Alone
Manabe Kensuke has been asked to take care of and protect his younger cousin, Kai, who is being stalked. As time goes on, the cousins are becoming good friends - very close. But is it too close? Is Kensuke any better than the stalker?

From Jigoku:

Katsuhiko and Youji were finally together, but Youji got into a car accident and was sent to a hospital. In order to ensure a successful operation, Katsuhiko’s forced to give ‘special service’ to Doctor Ninomiya…

This book is about our charming and passionate couple, Katsuhiko and Youji.

From Fushichou:

Tomoki is in love with his senpai, Sawaki. One day while at Sawaki's house, Sawaki's brother Atsuya, caught him jerking off while smelling Sawaki's shirt. Afraid Atsuya would let the secret out, Tomoki avoids Sawaki. Four years later, Sawaki is getting married and Tomoki is invited to the party and while his 'love' for Sawaki is still as strong as ever, another person has their eyes on Tomoki. It's Atsuya, the younger brother of Sawaki who wants to conquer Tomoki's heart... will he succeed?

A beach, a lost hat, and a chance encounter bring Masato and Kazuya togther. Masato especially needs friends since he moves from house to house after his parent's death. But now, since the "accident", can these two ever be friends again?

From Peccatore Sanctuary:

Newbie manga editor Hatori Sekima has always admired the well-known shoujo mangaka Honda Yuki sensei, hoping one day to work with Honda sensei. But when Sekima finally gets the chance with work with Honda sensei, he discovers that this Honda sensei is not the cute girl he imagined, but a handsome man who seems to be 'interested' in him immediately...

Collection of oneshots :

1) Summer of Promise
2) Reminiscence

Moriuchi Sei, an exchange student, went to England to escape from his past. There he met Hue Wilfort, who was abandoned by his family. Despite his kind personality, Hue made himself being recognized as a delinquent drug dealer. Will he able to save Sei from his haunting memories? Will Sei not leave Hue after one year of exchange program?