In addition to the newly launched gacha campaign featuring signed copies of an art book by the talented 40hara who specializes in cute girls giving you a disgusting look.
J18 have decided to give away a signed copy of The Art of Iyapan English Edition on their Twitter account!
All you have to do is follow the instructions in the tweet below:
https://twitter.com/J18Publishing/status/1152261388389122048