Luck has only been on Yeonwoo's side twice in his life: when he and his brother were saved by an esper named Seojoon, and when he reunites with Seojoon as a 20-year-old guide. Unfortunately, Seojoon doesn't seem to remember saving Yeonwoo. Not only does the older man see Yeonwoo as a kid, but he also makes it clear that he doesn't want to get attached to any guide. However, there's no telling what'll happen when their sync rate is so high and Yeonwoo has had a crush on Seojoon for years... (Source: Tappytoon)

Original Novel:
RIDI, Bomtoon, MrBlue

Original Webtoon:
RIDI

Official Translations:
English

Note: The official English translation is uncensored.