Kimi to Boku wo Tsunagumono

is a japanese manga series written by Arai Cherry. It began serialisation in the Vol. 1 special edition of Manga Time Kirara Forward.

The series was released under 1 volume in January 2009.

Synopsis
After getting hit in the head, Asakawa Mayu, the beautiful classmate of Date Asahi, regains her memories from her past life as an old man in the service of a young master- and Date happens to be that young master's reincarnation! Following these strange events, Asakawa now begins to search for Date's fiance from his previous life. The relationship between this servant and young master will gradually change.

(Source: MU)