Time Stop Hero manga volume 8 features story and art by Yasunori Mitsunaga.

Intent on discovering the secrets of Offshore Rope, Sekai delves into the dungeon under the Great Full Shield. Surely nothing lurks beneath that his amazing power to press pause on reality cannot handle! But Sekai isn't the only player in this game, and he's not ready for the curve ball his enemies are going to throw! Sekai has three days to save the world, but only three strikes before he's out...for all time!