Tensei Shitara Slime Datta Ken - OAD 1 - Souka Warms Up

Souka stretched before her sumo match against Shion, which ended up not being necessary at all.

While in a dream, Rimura decided that his villagers needed a regional pastime to help them relax and not burn out from doing industry and security exercises all day. Since they couldn't come up with manga, anime, and gaming any time soon, Rimuru decided that a sport was the way to go. Specifically, Sumo Wrestling. Unfortunately for Ranga, this was exclusive only to the humanoid type monsters. Also, no using horns.

The men's side was quickly decided because Benimaru went all out in protecting their prize, using his sister Shuna's lap for a pillow, and allowing it only for Lord Rimuru's use. The women, on the other side, was much more competitive as they fought for an all day date with Rimuru. First up was Shion and Souka, In a blow to both of their prides, Shion accidentally used her horn to steal Souka's modesty. Shion advanced.

Treyni, the dryad protector of the Jura Forest, came by to enjoy watching the commotion, even dressing in her own interpretation of sumo gear. Milim ended up losing to Shuna on a technicality because her girded loins came undone. Undoing Shuna's top is apparently not a penalty for either opponent.

It all came down to the two who most covet time with Rimuru, but by then, the sumo ring was broken and too small for Shion and Shuna's match. Rimuru suggested Butt Sumo, where opponents use only their butts to knock the other off the pedestal. Yes, this first OAD, which came out after the second OAD for some reason, devolved into isekai Keijo!!!!!!!!. The pedestal was destroyed, so the match was called a draw. In the epilogue, Rimuru woke up from his dream and decided he didn't really need to sleep in his human form any more.