Set in an Eastern fantasy setting, Dān Fěi and her brother, guardians of a sword known as the Tiān Xíng Jiàn, are pursued by the evil Xuán Guǐ Zōng clan, who seek to obtain the sword for their master, Miè Tiān Hái. While her brother is defeated, Fěi, who possesses the sword's crossguard, escapes and finds herself in the care of the wandering swordsman, Shāng Bù Huàn, and a mysterious man named Lǐn Xuě Yā, who become her protectors from the pursuing Xuán Guǐ Zōng clan.

Every week at 5 p.m. an old man in a yellow mask (the kamishibaiya or kamishibai narrator) shows up at a children's playground and tells them ghost stories based on myths and urban legends of Japanese origin. The man tells the stories on the back of his bicycle using a traditional kamishibai (紙芝居, Paper Drama) method and features a new tale each week. In the third season, instead of the old man in a yellow mask and his kamishibai stage, a boy (later revealed to be the kamishibaiya in the form of a child) sits on a playground slide and sings, "Friends on that side, come to this side... Friends on this side, go to that side..." as he draws illustrations of the creatures in the stories. At the end of each episode, the narrator's mask sings the closing song to him, multiplying in number as each episode ends with the final one being worn on the boy's face. As of Season 4, the kamishibaiya returns, telling the stories to children at a playground every 5 p.m., going back to the original format of Seasons 1 and 2 (voice actors are different every episode). In Season 5, the children are not seen playing on the swings. Instead, they gather to the call of the old man in silhouette. In Season 6, the old man tells his stories in a forest instead of a school. A shadow takes the form of the old man then puts on the mask as he introduces the story. In Season 7, the old man tells his stories in a creepy apartment. In Season 8, he tells his stories at a busy urban intersection, surrounded by vague shadowy passersby.

Tohru learns about a new Maid Café had opened nearby and decides to work there during her free time. Kobayashi and Kanna drop later at the café to check on her just to find that she has become their cook. Tohru uses dark magic to enchant the dishes served there, which makes the café a success, until she decides to quit, but before leaving, she teaches the other maids to use dark magic as well. A few days later, Tohru and Kobayashi are attacked by Ilulu, an extremist from the Chaos Faction who berates Tohru for coexisting with humans. Tohru gets herself in a disadvantage against Ilulu as she protects the city from her attacks until Kobayashi enlists Elma's help by bribing her with sweets, allowing Tohru to fight with all her power and defeat Ilulu. Ilulu later returns and attempts to seduce Kobayashi but fails. Certain that Kobayashi has not fallen for her because she's a woman, Ilulu retreats for a while, but not before transforming Kobayashi into a male.

Set in Manila where the mythical creatures of Philippine folklore live in hiding amongst humans, Alexandra Trese finds herself going head to head with a criminal underworld comprised of malevolent supernatural beings.