Wen Xiang Xie (2022)

- Similar couple but gender flipped (in BK tsundere ML x smitten FL, in SoL tsundere FL x smitten ML).
- Leads are a power couple, each strong in their own way
- Protective FLs
- Merchant leads (In SoL, it's the ML, in BK it's the FL) who are involved with the other lead's shop
- Both focused on magical scents
- Similar supporting characters

Both FLs are old and powerful and initially antagonistic towards the ML. Both have a bad attitude a lot of the time but genuinely care about the people who work for them. The MLs are kind and generous people without any inherent power. Hotel del Luna is darker and more serious, while Scent of Love is more comedic and character-driven.

calm and more grounded xianxias that feature powerful demon FLs with ordinary human MLs who quickly fall in love with the FLs

ML vs. FL is a supernatural being who is collecting something (scents vs. emotions) from humans. They end up falling in love with the human who has the last thing they need and must make a difficult decision.

Both are fantasy dramas with a similar feel and tone, with a long past connection between the leads. Both MLs are very devoted to the FL.

Similar in tone and both are easily watchable, light-hearted fantasy historical rom-coms.

In both dramas, one lead needs the other to fall in love so that they can extract an important artifact/substance from their bodies. In TPatW, the ML has to get a pearl from the FL through true love's kiss. In SoL, the FL needs to get a love-dependent fragrance from the ML.

other similarities...
+ human x non-human romance
+ ML falls first and is totally smitten
+ very sweet, devoted, puppy love ML
+ FL is the more dominant one in the relationship, makes the decisions
+ one lead holds the other captive in their home

Both FLs have powers and a complicated relationship with the mortal ML who has reincarnated/someone has appeared with his face.