Niconico Seiga and Kodansha's Monthly Shonen Sirus magazine's "Suiyōbi no Sirius" website began publishing a new spinoff manga on Saturday of author Fuse and artist Mitz Vah's That Time I Got Reincarnated as a Slime (Tensei Shitara Slime Datta Ken) light novel series.
Tae Tono is drawing the manga, titled Tensei Shitara Slime Datta Ken Ibun: Makuni Kurashi no Trinity (That Time I Got Reincarnated as a Slime Another Story: Trinity of the Magic Kingdom). Tono will publish new chapters on the second and fourth Thursdays of the month.
The manga centers on Phos, a girl from the Beast Kingdom of Eurazania. Phos goes to Tempest on secret orders from Demon Lord Carrion.
The novels' television anime adaptation premiered on October 1 and will run for 25 episodes.