>>1530093
>best worldbuilding

Log Horizon info
https://en.wikipedia.org/wiki/Log_Horizon

Anime downloads
https://nyaa.si/?f=0&c=1_2&q=log+horizon

SFW Log Horizon artbook:2014
https://e-hentai.org/g/704128/bc906c258f/

SFW Log Horizon artbook 2015
https://e-hentai.org/g/2479685/48589140ca/