In this fantasy that transcends time and space, Sungwoo, a third-generation billionaire, opens his grandfather's heirloom jewelry box and gently touches the crystal ball that was inside. That's when a nine-tailed fox named Bi magically appears, straddling his body! Why is this man yelling, and why does he insist that he's from the Joseon Dynasty?! Bi turns out to be a handful, so Sungwoo asks his cousin Yoosung to help take care of him. But when the typically generous cousin becomes possessive of Bi, the three find themselves in a twisted love triangle of fate!

Original Webtoon:
Main Story: RIDI, KakaoPage, Bomtoon, Lezhin, MrBlue
Side Story: RIDI, KakaoPage, Lezhin, MrBlue, Comico, Aladin

Official Translations (R15):
•English: Tappytoon, Lezhin, Lalatoon, Toomics, PocketComics
•S.Chinese: BiliBili, KuaiKan, Dongman, Lalatoon
•French: Tappytoon, Lezhin, PocketComics
•German: Tappytoon, Lezhin
•Thai: WeComics, Lezhin
•Japanese: Lezhin, cmoa, Renta, Booklive, eBookJapan, Honto, DMM, Beltoon, Mecha Comic, Comico, LINE Manga

Official Side Story Translations (R19):
•English: Tappytoon, Pocket Comics
•French: Tappytoon, Lezhin
•German: Tappytoon, Lezhin
•Thai: Lezhin
•Japanese: Lezhin, cmoa, Renta, Booklive, eBookJapan, Honto, DMM