Open Your Heart

Persisting Kanzashi to be his partner, Ichika looks up on maintenance assistance for Kanzashi's personal IS, but it's not that simple. Meanwhile, upon realized Ichika insisting to pair with Kanzashi for the tag tournament, the girls take their time training more aggressively. As Tatenashi has Houki to team up with her, she analyzes Houki's physical body, to her surprise to learn that her aptitude is up to level S already. When Kanzashi takes her IS, Uchigane Nishiki, for a test run, it malfunction, then Ichika saves her before she crashes. Having a change of heart towards Ichika, she indirectly agrees to be his partner. Then Ichika shares data from Byakushiki to help improve Kanzashi's IS, and haves other students to gladly help. Returning to his dorm room, Tatenashi insist Ichika for another massage, talking how important younger siblings can be for their elders, knowing how strict they can be for their protection. Kanzashi having to give Ichika sweets as gift, she reaches his door only to overhear that Ichika’s generous offer was Tatenashi's idea, leaving her heartbroken.