Cupid's Ghost

- Both are BL Series
- Both have a Florist Male Lead
- Both have a Funeral Director Male Lead

Cupid's Ghost is Romantic Comedy Fantasy/Supernatural while I Flower You doesn't have the Fantasy/Supernatural aspect

Both have leads that can see dead people. The lead helps the dead person in being able to move on... one show is by helping the person finish their worldly business while the other is through flowers. While Cupid's Ghost isn't out yet, it does have similar plot points based on the trailer leading me to believe that if you like one of these shows you may like the other.