The match between Ichika and Charles against Laura and Houki begins where Laura focuses on fighting Ichika and pays no heed to her partner Houki, who is soon knocked out by Charles. Ichika and Charles uses their teamwork to take advantage of Laura's AIC shield to defeat her despite Ichika's shields running low after using Yukihira. With her defeat imminent, Laura reminisce her past of being a failed genetically engineered soldier unable to adapt an IS until meeting her teacher and role model Chifuyu but hates Ichika upon learning Chifuyu shows her softer side because of him. Not wanting to give up, Laura goes berserk which transforms her IS into a large, dark IS. Wanting to stop her, Charles gives her remaining IS power to Ichika to manifest Yukihira and uses it to strike the dark IS and free Laura. As Laura recovers and learns who Ichika fights for, Chifuyu explains what cause her IS to go berserk and consoles Laura to not follow in her footsteps but to choose her own path and be who she really wants to be. Despite the inter-class tournament being cancelled, Ichika decides to go out with Houki. Later at the newly-opened boys' public bath, Charles tells Ichika that she will stay at the Academy under her real gender and name, Charlotte. When the class learns the truth about Charlotte, Lingyin, in anger, arrives to punish Ichika but is saved by Laura. However, Laura suddenly kisses Ichika in front of the girls and tells him he is going to be her "Wife", much to the shock of everyone.