That - Time I Got Reincarnated As A Slime S01e245...

The episode you are referring to is titled (Japanese: Kanwa: Verudora Nikki ), which is technically Season 1, Episode 24.5 of That Time I Got Reincarnated as a Slime . Episode Overview Title: "Tales: Veldora's Journal". Type: A recap special that concludes the first season. Release Date: March 26, 2019.

The episode features Ifrit , who has been trapped inside Rimuru's stomach since their battle early in the series. He and the Storm Dragon Veldora Tempest recap the major events of the season from their unique perspectives while passing the time playing Shogi . Key Highlights That Time I Got Reincarnated as a Slime S01E245...

You can find this special on platforms like Crunchyroll and IMDb . The episode you are referring to is titled

Much of the comedic value comes from Veldora making up illegal rules (like promoting a piece to an "Emperor") because he refuses to lose to Ifrit. Release Date: March 26, 2019

That Time I Got Reincarnated as a Slime (TV Series 2018– ) - IMDb

It provides a rare look at Veldora's humorous and somewhat "tsundere" personality while he remains sealed.