The story is set in an alternate world called Yamauchi, ruled by the Yatagarasu clan, who are able to transform between human and crow forms.

Years ago, the fearsome Pirate King, Gol D. Roger was executed leaving a huge pile of treasure and the famous "One Piece" behind. Whoever claims the "One Piece" will be named the new King of the Pirates. Monkey D. Luffy, a boy who consumed a "Devil Fruit," decides to follow in the footsteps of his idol, the pirate Shanks, and find the One Piece. It helps, of course, that his body has the properties of rubber and that he's surrounded by a bevy of skilled fighters and thieves to help him along the way. Luffy will do anything to get the One Piece and become King of the Pirates!

After successfully passing his Provisional Hero License exam, Izuku

The cases of a detective whose physical age was chemically reversed to that of a prepubescent boy but must hide his true mental development.

Takuma isn't the most exciting guy. He's awkward, single, and does nothing but go to work and come home. Tired of doing chores, he decides to buy a housekeeping robot named Mina.

As the world is threatened by the sudden appearance of a mysterious alien mothership, best friends Koyama Kadode and Nakagawa "Ontan" Oran carry on about their high school life.

The sudden aerial invasion of Earth by

For Makoto Hanaoka, life's about to get more complicated. Saki Aoi, a lively girl with loads of confidence, confesses her love for Makoto one day.

Belle Lablac doesn't really fit in as the only human being in a world full of anthropomorphic animals. No fangs, no fur, no scales, no claws.

It's life mostly as usual for the Smith family. Rick is in a pseudo-world, Summer helps Space Beth and Morty's in love. And they're all an anime.

When his father remarries, Yuta Asamura winds up sharing a roof with his new stepsister, Saki Ayase, the hottest girl in his grade. Carrying the scars of their parents' troubled divorces, they vow to maintain a respectful distance.

Eiji Kitahama joins the drama club with dreams of having a harem like the ones from his favorite manga. Rin Nanakura, an underclassman, finds herself crushing hard on Eiji, and tries on different personas in his presence to win him over.