Angel's Wish

Arin, a rookie angel who descended to Earth with a mission to grant human wishes, suddenly finds herself in a dangerous accident. She is saved by a firefighter named Taeyun. To repay him, Arin decides to gift 'peaceful sleep' to Taeyun, who suffers from trauma and insomnia, by entering his dreams and performing various acts... As they begin to meet in reality as well as in his dreams, they are drawn to one another, and Arin finds herself shaken by forbidden emotions.

Original Webtoon:
Naver Series