Niina Keito is always surrounded by girls who're into casual relationships because of his showy looks and "playboy" demeanour, but he's actually a pure-hearted shoujo fan who's never even had sex before! On the other hand there's Takizawa Ryou, who's the picture of a studious, courteous prince in front of the girls but is secretly a mean-spirited guy who doesn't care for them one bit.

These two polar opposites are newly stepbrothers and therefore forced to live under one roof, but this, as well as the fact that their true personalities are completely different from their chosen images, are the two secrets they've both agreed to keep for each other.

But one day, quite out of the blue, Ryou kisses Keito, saying "Choose me. I'll love you for who you are"!?

1-2) Holding You/Whispering from Behind
Maki was shocked when he bumped into Nagayoshi sensei wearing just a white robe with the instructor. When they met again after some time, will Nagayoshi be honest with his feelings now?

3) Vertigo
Makoto is a rookie police officer when his grandmother dies and he's left all alone with no one left in the world. Mystery man Serizawa appears, determined to pay back a debt he owed to Makoto's late grandfather by helping the younger man. Makoto finds himself relying more and more on his new friend, but how much does he really know about him?

4) Water Bed
Salarymen Hiraoka and Teramoto meet suddenly after many years. Former college classmates and swimmers, Hiraoka was always entranced by Teramoto, but unable to meet his eyes until one day when Teramoto stole a passionate kiss...

5) Poker
Undercover police officer Kiriyama finds himself at the mercy of ruthless gangster Kamou.

6) Cage
The Takasugi and Miyoshi family have been at odds for decades, and the current generation is no better. But when a terminally ill Takasugi is cast out by his family, Miyoshi takes in his rival. Trapped in a luxurious mansion and waited on hand and foot, what are Miyoshi's plans for the helpless invalid?

7) The Imprisoned Sun
Kajiwara Tsukiya's vacation in India gets off to a rough start when his passport and belongings are stolen. Taken in by the wealthy and powerful Suria, their short time together becomes precious. However, enchanted by Tsukiya, Suria has no intention of letting him go...

8) Everything's For Your Sake
Company President Fukaya Seiji spends a drunken night with his secretary, Houshou. Now he can't stop thinking about the cool beauty, but Houshou acts like nothing happened!

9) The Sweet Poetry
Prince Chris doesn't want the arranged marriage his father set up, he's in love with his tutor, Sakura. But even though they're lovers Sakura refuses to admit his feelings.

Young actor Hinase, together with experienced actor Saiga, are secret lovers. Just 19 years old and possessed by heat, while Saiga always stays calm, makes Hinase feel like he's being looked down upon and seen as a child, which makes him very angry!! Always being seen this way by Saiga, and having enough, the two are still no reconciled. As a result, Hinase wants to fool Saiga more and more?!

This is simply two men who like to love each other in this manner!

1-2) Howl at the Moon
Miki is the bodyguard of the super-model, Ran. He's also the only person who knows that the golden-eyed Ran is in fact a werewolf. Not only does Ran have an animalistic sex-drive, he's also inhumanly strong. “Then, why does he need me as his bodyguard?” Miki wondered… And then, Ran was stabbed by a fan while protecting Miki...

3) Intoxicated by the Moon
Luke, the owner of the modeling agency where Ran works, is also a werewolf. Madoka, his assistant/secretary is always walking in on Luke seducing women in his office... but when the full moon appears, Luke is always at Madoka's house... why!? The appearance of a young new model complicates things even further...

4) LOST
Every night, Ray relives the nightmare of shooting his detective partner Steve. Unable to sleep at night, he constantly needs sleeping pills to survive. His new partner, Brad, is tortured watching Ray growing more gaunt every day. When undercover FBI agents start showing up dead, Ray's nightmares might just hold the answer to finding the culprit.

5) Secret
Alan is your typical playboy - money, women and more money. When he meets an inexperienced Japanese transfer student, Masaki, in the university cafe, he decides to try it with guys too. Masaki soon realizes that he is only a toy to Alan, and returns to Japan. Years later, Alan runs into Masaki again... but Masaki is engaged!? Blackmail is in order...

6-8) Start with a Kiss + 2 page extras (Kisu Series)
Super popular high school student Nishimura Jun has a beautiful face, a great body and women lining up to have sex with him! So why is Jun still a virgin? The romantic Jun wants nothing more that a sweet and pure love. Hiding his virginity is becoming tiring, especially since kouhai Machida seems to be onto his ruse...

Afterword

1-2) Howl at the Moon
Miki is the bodyguard of the super-model, Ran. He's also the only person who knows that the golden-eyed Ran is in fact a werewolf. Not only does Ran have an animalistic sex-drive, he's also inhumanly strong. “Then, why does he need me as his bodyguard?” Miki wondered… And then, Ran was stabbed by a fan while protecting Miki...

3) Intoxicated by the Moon
Luke, the owner of the modeling agency where Ran works, is also a werewolf. Madoka, his assistant/secretary is always walking in on Luke seducing women in his office... but when the full moon appears, Luke is always at Madoka's house... why!? The appearance of a young new model complicates things even further...

4) LOST
Every night, Ray relives the nightmare of shooting his detective partner Steve. Unable to sleep at night, he constantly needs sleeping pills to survive. His new partner, Brad, is tortured watching Ray growing more gaunt every day. When undercover FBI agents start showing up dead, Ray's nightmares might just hold the answer to finding the culprit.

5) Secret
Alan is your typical playboy - money, women and more money. When he meets an inexperienced Japanese transfer student, Masaki, in the university cafe, he decides to try it with guys too. Masaki soon realizes that he is only a toy to Alan, and returns to Japan. Years later, Alan runs into Masaki again... but Masaki is engaged!? Blackmail is in order...

6-8) Start with a Kiss + 2 page extras (Kisu Series)
Super popular high school student Nishimura Jun has a beautiful face, a great body and women lining up to have sex with him! So why is Jun still a virgin? The romantic Jun wants nothing more that a sweet and pure love. Hiding his virginity is becoming tiring, especially since kouhai Machida seems to be onto his ruse...

Afterword

Kohitsuji Project is about a boy being accepted into a prestigious school not knowing he is the "sheep" that is meant to let the vampires learn that humans are not to be treated like food!

(Side stories from both volumes are not scanlated.)