On the way home from shopping one day. Lilith comes home drenched in a shower. Later, Lilith devotes herself to housework as usual, but she makes a series of unthinkable mistakes. Yuuri couldn't help but put her hand on Lilith's forehead, and she got a high fever...! Lilith's physical condition was completely recovered the next day, perhaps because Yuuri's straightforward words that gently thought of Lilith became her medicine. While spending such days, the world rushes into the Halloween season. Yuuri and Lilith are busy preparing their costumes for the Halloween party at Tsukasa's mansion.