Romance Ao Lucar (2020)

God and human relationship. Interesting supporting characters. Similar tone and feel as well as ending.

Slow burn romance between an immortal being (god vs. grim reaper) and a human. Both have bittersweet open endings.

Both are a love story between a human FL and a supernatural being ML (angel vs. god) who only has a short time on earth and is in danger of disappearing/fading away.

God-like being attempts to break his curse with the aid of a human woman but ends up falling in love with her and wanting to stay alive/on earth.
Beautiful soundtracks and visually attractive drama.
Romance and bromance.
Bittersweet ending.

Different in tone but similar in characters and aesthetics. ML is a god like being, FL a human, and their relationship grows slowly. Also in the end, ML disappears, then returns as a human.

In both dramas the male lead is a supernatural being. He has to figure out his connection to female lead, and at the same time face his destiny.