Una conspiración de larga data se arremolina sobre un poder misterioso ejercido por la Reina en Raja, un pequeño país al oeste de Tempest. Cuando un slime que se convirtió en un Demon Lord llamado Rimuru Tempest se cruza con Hiiro, un sobreviviente de la raza Ogre, comienza una increíble aventura repleta de nuevos personajes. ¡El poder de los lazos será puesto a prueba!

La historia se centra en Mio, una chica que está preocupada porque su amigo de la infancia no corresponde a sus sentimientos. Después de una pelea trivial entre los dos y durante un día lluvioso, Mio sufre un accidente de tráfico y cae inconsciente. Al despertar se encuentra con un misterioso mundo del que nunca había escuchado o leído…

At the risk of her group's safety, a young woman travels into a National Forest where her sister has become trapped in a multi-dimensional world of monsters.

Due to a spacecraft malfunction, saleryman Ryu and his robot companion "MOS-01" crash land on the space ship/planet Gdleen. Ryu meets a cute Euredonian fairy called Fana and the two are soon entangled in a long standing war between the monsterous Babaress and the spell casting Miyorl tribes.

In a city of a parallel world. A boy finds a pair of broken scissors from his father's belongings after he passed away. And a boy's mother tells him that his father had been a gardener in the past. Then he figures out the scissors were made by Sasuke, who is an artisan living in a foreign country. The boy travels all the way to a place where Sasuke lives in order to get his scissors fixed.