These stories revolve around Kouichi Aihara. Every volume stars Kouichi and another girl who each share a romantic story. Volume 1 = Mao and Kouichi Volume 2 = Asuka and Kouichi Volume 3 = Mitsuki and Kouchi Volume 4 = Eriko and Kouichi Volume 5 = Yuumi and Kouchi Each story is seperate from each other.

Tachibana Junichi is a boy from class 2-A. One day walking home, he saw by accident a girl's "underwear." Afterward, he finds outs what it really was... Based on the Amagami love simulation game. The focus is on Tachibana Junichi relationship with Ai Nanasaki. The second arc focuses on Morishima Haruka. The third arc focuses on Sakurai Rihoko.

Two years ago, Tachibana Junichi got his heart broken by a girl who didn't show up for a date on Christmas Eve. Now a second year student in high school, Junichi spends his days inside his closet planetarium, going to school and hanging out with his friends Tanamachi Kaoru and Umehara Masayoshi. Based on the Amagami love simulation game. The focus is on Tachibana Junichi's relationship with Tsukasa Ayatsuji. The second arc focuses on Kaoru Tanamachi.

Based on the visual novel by Enterbrain with the same name. A second-year high school boy finds himself uneasy during Christmas time due to an experience in the past. However, this year at Christmas, he gets his last chance to ask out a graduating female senior named Haruka Morishima or one of several other classmates. The story of the anime will be arranged in an omnibus format, with each heroine getting her own version of the story animated. Each heroine will sing her own version of the ending theme song.

Miya's brother Junichi has fallen in love with that natural queen Morishima Haruka. And with Junichi longing to date Haruka on the upcoming Christmas Eve, Miya, who has always cheered him on, is now...

Short stories of the heroines of Kimikiss and their love lives. Each chapter features different heroine.

Students in the "C³" club at the middle school division of Stella Women's Academy participate in military survival games.

Based off the popular Japanese PSP game, Photo Kano (or Picture Girlfriend) is about a boy, his interest in photography, and the harem that grows out of it.

Another Amagami serialization in Comp Ace magazine. This version features Sakurai Rihoko as the main heroine.

Based off of the Japanese PSP game, Photo Kano, this adaptation focuses on the characters, Sanehara Hikari and Masaki Nonoka, in volumes 1 and 2 respectively.

Based off of the Japanese PSP game, Photo Kano, this adaptation focuses on the characters, Sanehara Hikari and Masaki Nonoka, in volumes 1 and 2 respectively.

A manga adaptation of Eriko's route in the Kimikiss game.