Description: The Rules Universe revolves around Hikaru, his friends and love interests. Hydra, which appears only in doujinshi format, details the high school experiences of Ryuu, Hitomi, and Hikaru. There are several companion doujinshi for this series that feature the same characters, some of them occurring before the start of Hydra. Lovers and Souls covers the heartbreaking story of Hikaru's prostitute friend Tooru and Tooru's sempai, Matsuoka. Rules and its related doujinshi focus on four characters (Hikaru, Yuki, Atori, and Tooru) who each have to accept love as it is, not as they would have it be.

Note: The following is in chronological order instead of publication order for your reading pleasure. Please note that Miyamoto Kano is often creating new works that span from past to future so we will be updating this list as new material is created and projects are added.

• Please ch5

• Kiss

• Kiss After

• Skies

• Hydra 1+2+3+4

• Hydra 5+6

• Heavenly

• Hydra 7+8

• Blue Film First

• Hydra 9+10+11

• The Days Before

• Real Thing

• Hello Again

• Lovers and Souls

• Fragile

• Vanity

• Rules 01

• Rules 02

• Rules 03

• If Winter Comes, Can Spring Be Far Behind?

• Song Birds

• Another Day On The Planet

• Another Rules Story

• Double Trouble