Manabu is summoned to another world... But turns out he isn't the hero that is needed. However, he's supposed to have sex with the Elf lady if he doesn't want to get vaporized...!?

(Source: Irodori Comics)

1. Isekai Shoukan: Elf na Onee-san wa Suki desu ka? (異世界召甘 エルフなお姉さんは好きですか？; Sweet Life in Another World 1: Are You In...