Please refund this imprint!

Summary

When Jeong-in heard that his long time crush was getting married, he ended up having a one-night stand to forget his broken heart. He remember having sex with a handsome man, but what is this strange pattern on his tongue? The man appears again and says that he is a vampire and has imprinted on Jeong-in. "You will continue to feel excited because of the imprint. So... Won't you date me until we find a way to undo it?" [Original Webtoon](https://www.bomtoon.com/detail/refundstamp)