That Time I Got Reincarnated as a Slime
is also known as TenSura (転スラ) or Slime Isekai. It is a Japanese fantasy light novel series written by Fuse. The pictures in the light novel are drawn by Mitz Vah. It was published online between 2013 and 2016 on website Shōsetsuka ni Narō. Micro Magazine published the first light novel volume in 2014. Twenty-one volumes have been released as of October 2023. The light novel has been licensed in North America by Yen Press. It published the first volume in December 2017.