Century of Love (2024)

Some similarities:
- gay romance with a focus on fated lovers, past life and reincarnation
- death at the hand of a love rival tears the true lovers apart but they are fatefully bound together
- a main character seems to be a woman in the past life and is reborn as a man in the next life
- a main character no longer has parents, only a grandmother
- interesting mix of mythology, fantasy, action and comedy
- main characters are coming into contact with different criminals
- they are fighting together and protecting each other from criminals

Some differences:
- The Sign is about the mythology surrounding Naga and Garuda, Century of Love is about the goddess Nuwa
- in The Sign both main characters are reincarnated and don't know it at first; in Century of Love only one person is reincarnated and is unaware, while the other performs a ritual to not age until he finds his lost love
- in the Sign the main characters are policemen and solve criminal cases, in Century of Love one main character oversees a temple and market complex while the other works in a supermarket

The main story of this series is different, but similarities occur because the main characters waited more than 100 years to meet each other again.