I Heard That I Have Conquered the World

Aini: Rumors... Fuck? ! Updated daily. After the end of the world, the world restarts, and each region shows the style of different eras. Some are still primitive societies, some have entered feudal dynasties, and some have become ultra-modern societies with high technology. Classmate Aini, whose memory has been restored, will face a world he has never seen before, and take on cruel adventures with sand sculptures... I guess.