KONO Tsuranori 
D-Genesis: Three Years after the Dungeons Appeared Volume 4 [EPUB ebook] 

Three months have passed since Keigo “Kei” Yoshimura and Miyoshi started living the good life, but are their fortunes a gift or a loan? And if so, from whom? They may be on the path to finding out when the appearance of the Wandering Manor on the first floor of Yoyogi Dungeon leads to information about a missing person of interest. Meanwhile D-Powers, LLC, hosts a press conference set to shake the foundations of society. Kei gets his rock-paper-scissors game on. Will Kei and Miyoshi’s crafty capitalism save the world, or destroy it? All this, and dungeon cults too!