Yukisada becomes captivated by a strange and beautiful girl named Komaki Matsuzawa, who says that she was born on another planet and that she is trying to go back.

On entering high school Yukisada becomes concerned about one of his female classmates named Hiroka Sōma.

The two-chapter side story titled Takaura-sanchi no Kazokukeikaku (高浦さんちの家族計画) concerns Yukisada Tamura's good friend, Shinichi Takaura and his younger half-sister, Io Tamai.

Watashitachi no Tamura-kun began as two-volume series of light novels written by Yuyuko Takemiya and drawn by Yasu.

Tamura-kun" which appeared in the November 2005 issue of the light novel anthology magazine Dengeki hPa.

Another called "Himitsu Melancholy" appeared in the Watashitashi no Tamura-kun First Fan Book which came bundled with the July 2006 issue of Dengeki Comic Gao!.

[2][4] The chapters were collected into four tankōbon volumes published under MediaWorks' Dengeki Comics imprint between December 16, 2006 and June 27, 2008.