Prequel to the series Litchi Hikari Club by Furuya Usamaru, Bokura no Hikari Club follows the lives of the nine club members before the events of Litchi Hikari Club.
The story starts of with 9 boys, all in the Hikari Club, who are driven to make the ultimate Artificial Intelligence, and will stop at nothing to create it. The leader of the club, Zera, is an attractive boy who is very sick and twisted. He has complete control of the members. The second-in-command and previous leader, Tamiya, is not happy with the way Zera is controlling everyone, so he tries to reclaim the club, and eventually everything begins to crumble and turn into chaos.