It was originally announced to be bundled in the eleventh volume of the manga series released on March 29, but the limited edition of eleventh volume has been cancelled and the OVA will now be bundled in the thirteenth volume of the manga series, to be released this December.
The official website for the currently airing Tensei shitara Slime Datta Ken TV anime has announced that the release for the previously announced OVA will be delayed.
The reason behind it that the production team mentioned…