Re:Zero kara Hajimeru Isekai Seikatsu, known in English as Re: Starting Life in a Different World from Zero, is a Japanese light novel written by Tappei Nagatsuki, and illustrated by Shinichirou Otsuka. The series tells a story of Natsuki Subaru, a young man that lives his normal life in modern Japan. One day, he's summoned to another world. Without knowing the person that summoned him, or the reason for being summoned in the new world, he soon befriends a silver-haired-half-elf girl, Emilia.
The subreddit for Kono Subarashii Sekai ni Shukufuku wo!, also known as Konosuba! Also the anime where everyone is useless goddess