Blue Days ~ Red Switch.Houki becomes pressured to win the upcoming tournament after her attempt to ask Ichika out has escalated into a rumor that whoever wins the tournament would score a date with him. As Cecilia and Lingyin prepare to spar, Laura appears in the Schwarzer Regen and goads them into a two-on-one battle, effortlessly countering all their attacks. When she continues to beat the two at the risk of their lives, Ichika and Charles step in to the rescue before Chifuyu reveals that the duel will be settled in another tournament...