Boku no Itoshii Youkai Girlfriend (2024)

Similars

Similar dynamics ml is a human Fl is a supernatural being Japanese dramas Entertaining Romance Comedy
My Demon

8.2 2023

Both contain Supernatural beings in love with humans Romance Comedy Fantasy Magic Drama Melodrama Mystery
Supernatural beings in love with humans Falling in love Romance Comedy Sweet Heartfelt Fantasy Modern Romance
Freeze

6.4 2006

Supernatural elements Supernatural beings falling for humans Romance Interspecies relationships Fantasy and paranormal elements
Similar dynamic in both shows were the ML is human and the FL is a supernatural creature. Initially, both ML encounter the FL by breaking a curse / awakening them from another realm. If you like one, try the other.
This drama is a love story between Kataoka Sakuya, a grim reaper who comes to the human world for the first time, and Mochizuki Nayuki, a woman who lost her father at a young age and has devoted her life to raising her only remaining family—her younger brother. As they meet, they gradually come to understand each other, and slowly, they begin to fall in love. However, a fate that will dramatically change their lives awaits them both…
All the gods will be leaving before the last rain of doomsday. However, an ordinary human girl unexpectedly puts a dent in their plans to retreat thus causing the world to move towards the unknown. Based on the animistic mythology of the Amis tribe, the gods are no longer willing to bless the land that is plagued with environmental issues. One by one, the gods depart the world they once loved. A human girl discovers that the opportunity to reverse her destiny lies within herself and her guardian. Before the final day of judgment, a love story between human and god unfolds.
I Am Nobody

8.7 2023

They both have a similar comedy style that involves supernatural creatures and monsters. I hesitate to call them horror, but if you're looking for some light horror comedy, both are great dramas for it.
Secret Angel

7.2 2012

L, an angel who’s endlessly fascinated with the human world, gets into trouble when she unthinkingly saves the life of Han Shi Yeong, a man who was meant to die. To make up for her mistake she must guard him on Earth for one hundred days and keep him safe from Hwan, a death god who is required to collect his soul. Both supernatural beings must contend with the knowledge that whichever one of them fails by the end of the hundred days will be erased from existence, and the longer they stay on Earth the further their powers fade and the more human they become.
Same "loser" MC with a girl with special powers that just shows up out of nowhere and rocks his world i suppose. The themes in both shows are quite similar even though Youkai GF is more action heavy. Similar shows, try the other if you seen the latter
- Human ML x Non-Human FL - Good vs Evil - Should criminals/bad people die for their crimes? Very similar in certain topics that are raised during both shows and the theme although Youkai girlfriend has more comedic tones than Judge from hell