Original Webtoon:
KakaoPage, MrBlue, Naver Series

Angel who loved humans, One. She feels sad about the unfair human life, and throws her soul into her body to save a short life of one child, 'One'. And I become an unstable human being and live in the form of 'one'... It is in danger from Lavanjin, a being kicked out of heaven seeking the power of "Won." At that moment, 'Gaan [Garian]' and 'Siu Sirius', which appeared to save 'one'. They want to wake up the "Won" who is deeply asleep in "one" and go back to heaven. Can they save one from the 'Lavanzine' of those who seek an unstable soul and return to heaven?