The anime is produced by studio Eight Bit and directed by Yasuhito Kikuchi, with Atsushi Nakayama as assistant director, Kazuyuki Fudeyasu handling series composition, Ryouma Ebata designing the characters, and Takahiro Kishida providing monster designs.

[1] The series follows a man who is killed and reincarnated in another world as a slime named Rimuru.

The first season aired from October 2, 2018, to March 19, 2019, on Tokyo MX and other channels.

[2][3][a] The series is simulcast by Crunchyroll[4] with Funimation streaming an English dub as it airs.

[7] The second opening theme song is "Megurumono" (メグルモノ) performed by Terashima, while the second ending theme song is "Little Soldier" (リトルソルジャー, Ritoru Sorujā) performed by Azusa Tadokoro.