-**Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=756060), [Naver Series](https://series.naver.com/comic/detail.series?productNo=5232683)
https://www.cmoa.jp/title/339275/
[title](https://ebookjapan.yahoo.co.jp/books/903263/) Queen Seirena of the Alcantia Kingdom had dedicated herself to her country, supported by the words of her parents who died young. However, one day, everything was suddenly taken from her by an imposter identical to herself. Betrayed by her fiancé and abandoned in a prison cell where no one came to help, Seirena resigned herself to death. However, the one who appeared before her was King Plum of the neighboring kingdom. He revealed his true identity as a vampire who had lived for many years and posed a question to Seirena: 『Will you become a vampire and come with me, or will you wait for death?』 In order to reclaim everything, Seirena enters into a blood contract with him.
In a world where magic is common, a rare illness called the Beast’s Disease grants strange powers but condemns its victims to be hunted—their bodies turned into powerful grimoires. In Paris, beneath the haunted Opera House, love, betrayal, and violence entwine as fate drags the cursed and the hunters alike into a tragic story of desire and ruin.
Minji escapes the harsh reality of life by playing the online game "Ultimate Arcadia." The guild members she is joined by accident are more kind than anyone in real life, and Minji finds herself relishing the unprecedented attention. As the bonds she builds through the game deepen, her affection for her guildmates deepens... but is this the right time to start dating? **Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=845675), [Naver Series](https://series.naver.com/comic/detail.series?productNo=13503704)
Extra of 26 series (refer to Related Series field) [Original Webtoon](https://comic.naver.com/webtoon/list.nhn?titleId=721260) [Official Indonesian](https://www.webtoons.com/id/romance/2dboyfriends/list?title_no=1545) [Official S.Chinese](https://www.dongmanmanhua.cn/METROPOLIS/erciyuannanyoudaquan/list?title_no=1341) [Official T.Chinese](https://www.webtoons.com/zh-hant/romance/my2dbf/list?title_no=1534)
**Original Webtoon:** [Naver Webtoon](https://comic.naver.com/webtoon/list?titleId=791619), [Naver Series](https://series.naver.com/comic/detail.series?productNo=8044304)
**Original Webtoon:** [KakaoPage](https://page.kakao.com/content/60096304), [Daum](https://webtoon.kakao.com/content/%EB%B0%B1%ED%95%A9-%ED%95%98%EC%9A%B0%EC%8A%A4/3465)
