Grandson of the Evil God: Leading a Shut-In Life in Another World with Dark Elf SistersJashin no Mago: Dark Elf Shimai to Sugosu Isekai Hikikomori Seikatsu; 邪神の孫　ダークエルフ姉妹と過ごす異世界引きこもり生活

Satoshi Katakura, living a shut-in life, earns money through investments using the inheritance from his grandmother. One day, he wakes up to find that an otherworldly realm has spread outside his home. Appearing before him are dark elf sisters who revere his grandmother as the Evil God.\n\n**From this day forward, we pledge our eternal loyalty to you as our master!**\n\n*What is the sisters’ true purpose? What is the real identity of his grandmother?*