Ep. 21: Lucia discovers Kaito's house key and recalls her promise to clean while he is away.

21

Lucia locates the key to Kaito's residence and recalls her commitment to maintain its cleanliness during his absence. While scrubbing the bathroom, she inadvertently becomes soaked and opts to take a bath. Simultaneously, Kaito becomes aware that an intruder is present within his home. This episode also serves as the introduction for the character Alala, adding a new element to the ongoing narrative involving Lucia and Kaito.