For the noval version, read here:
https://e-hentai.org/g/3283591/cc56178a0f

Artist Links:
http://aryion.com/g4/user/SeekGr
https://www.furaffinity.net/user/seekgr
https://www.pixiv.net/en/users/11244113
https://twitter.com/SeekGr
http://deviantart.com/seekgr
https://umbrelloid.itch.io/level-draining

Writer's Links:
https://aryion.com/g4/user/Umbrelloid
https://twitter.com/umbrelloid
https://umbrelloid.itch.io