D-Happy Birthday

**Original Webtoon:** [Naver Series](https://series.naver.com/comic/detail.series?productNo=8379589), [Bomtoon](https://www.bomtoon.com/comic/ep_list/D_H_B_day), [Lezhin](https://www.lezhin.com/ko/comic/d_happybirthday), [KakaoPage](https://page.kakao.com/content/59715776), [MrBlue](https://www.mrblue.com/webtoon/wt_000060090), [Comico](https://www.comico.kr/comic/9141) [Two friends who plan to kill each other] Ji-seung, who was cursed by the death of his best person every birthday. Under pressure to become a murderer, he decides to become an optional murderer and becomes friends with the murderer.