Trillion Game manga volume 4 features story by Riichiro Inagaki and art by Ryoichi Ikegami.

Filled with reckless abandon when he learns that Haru has been working on a plan of his own, Gaku settles on an even bolder strategy - hacking into Dragon Bank's servers and stealing their future game plans! His seeming success turns into a high-stakes cat-and-mouse game when Kirihime invites him out on a theme park date…