'That Time I Got Reincarnated as a Slime' light novel series began publication, written by Fuse and illustrated by Mitz Vah.
The manga adaptation of 'That Time I Got Reincarnated as a Slime' started serialization, expanding the franchise's reach.
The first season of the anime adaptation aired, significantly boosting the franchise's popularity worldwide.
The second season's first cour of the anime aired, continuing the story and maintaining fan engagement.
The second half of the season two anime aired, concluding the adaptation of the corresponding story arcs.
Multiple video games based on the franchise were announced and released, expanding the franchise into interactive media.
Reiji Mikami, a corporate worker from Japan, is killed and reincarnates as a slime in a fantasy world.
The newly reincarnated slime, named Rimuru Tempest, discovers and gains the unique 'Great Sage' skill allowing analysis and knowledge management.
Rimuru befriends and later defeats the imprisoned Veldora, sealing him inside his own body using Ultimate Skill 'Predator'.
Rimuru establishes the Jura Tempest Federation as a nation for monsters and humans alike, promoting coexistence and peace.
Raphael, one of the Demon Lords, awakens and becomes a significant political force in the world.
Demon Lord Melascula attacks the Jura Tempest Federation, initiating a major conflict.
Rimuru evolves into a Demon Lord after a series of powerful confrontations and the absorption of powerful enemies.
Jura Tempest Federation signs a treaty of peace and mutual cooperation with the Eastern Empire.
A large-scale war breaks out involving the Jura Tempest Federation, other nations, and the Western Empire.