Re:Zero kara Hajimeru Isekai Seikatsu

Re:Zero kara Hajimeru Isekai Seikatsu (Re：ゼロから始める異世界生活, lit. "Re: Starting life in a different world from zero") is a light novel series written by Tappei Nagatsuki and illustrated by Shinichirou Otsuka. The story centers on Subaru Natsuki, a hikikomori who suddenly finds himself transported to another world on his way home from the convenience store

See here for more characters coming from this universe.