The Failed Heiress

Na Seulgi, a girl who can see the life force of others, has a kind grandmother who passed away. Her grandmother secretly gave her an apartment address that has Seulgi's inheritance hidden inside. However, the apartment is occupied by a cold but handsome guy whose life force is fading away...

Original Webtoon:
Ridibooks, Bomtoon, Lezhin, MrBlue

Official English:
Dashtoon, HyperComic, MangaPlaza, Manta