Finding My Angel

The girl next door—who seemed like an angel and with whom he’d once promised to marry after falling in love at first sight—returns ten years later... as a massive man!?

Eugene Kim is a Korean-American living in a small U.S. town.
He reunites with his first love, Morgan Riley, who has moved back next door after a decade—only to find that Morgan has transformed into a huge, blond man.
Eugene tries to avoid him after realizing he had mistaken Morgan for a girl, but things don't go quite as planned.

Original Webtoon:
Bomtoon, Lezhin