Baki Gaiden Retsukaiou wa Isekai Tensei ga Tenshoku wa Ignore it all 14

After the fierce battle with Kaijin, Retsukaiou heads for the Demon World, a new world, in search of his next strong enemy. What did he encounter at the entrance of the Demon World...?

After the fierce battle with Kaijin, Retsukaiou heads for the Demon World, a new world, in search of his next strong enemy. What did he encounter at the entrance of the Demon World...?