After disappearing from the underworld, the legendary yakuza known as the "Immortal Dragon" resurfaces — as a fiercely devoted stay-at-home husband.
Kiyo and Sumire came to Kyoto from Aomori Prefecture, dreaming of becoming maiko. But after an unexpected turn of events, Kiyo starts working as the live-in cook at the Maiko House. Their story unfolds in Kagai, the Geiko and maiko district in Kyoto, alongside their housemate maikos. Kiyo nourishes them daily with her homecooked meals, and Sumire strives toward her promising future as the once-in-a-century maiko.
Murai, a peculiar high school boy, is in love with his otaku teacher Tanaka. However, Tanaka rejects him, saying that she would never be interested in a boy with long, black hair. Murai then cuts his hair and dyes it blond, becoming the spitting image of Tanaka's favorite video game character.
