Trick (2000)

Both relay the funny experiences of women pretending to have supernatural powers while solving mysteries.

Both have main female leads that are smart, cheeky, and good a solving mysterious.

both female lead help an investigator to solve a crime that involves supernatural abilities.

Both dramas are from the 2000's and about mystery solving.
Both have a strong female lead as the main character.

Mystery solving drama, the character style is similar between the two.

A similar mix of similar humor, suspense, mystery, supernatural things, characters with different abilities and roles that complete each other, and a similar way of filming.

There are some magic, some psychology, some mystery and some romance. Both are cute and got your attention the whole time

Both main lead has a carrier as magician. Got tangle into a much complicated mystery. Can they use the magic to solve the problem?

Quirky characters, creepy cases, similar off-beat and dark atmosphere. Both also have male x female duo with great chemistry

Similar vibes of serious and jokes mixed together, the gags are peak comedy and the characters are lovable.

Main differences:
1-Trick is about occult and deals with people claiming to have super powers whereas in Jikou Keisatsu they deal with crimes and murders that have passed the SOL.
2- In Trick, the FL is the smart one and the ML is just a follower who helps sometimes, they make a great due, in JK the ML is the smart one and the FL is a cute follower.
3- There a lot of sidekicks in JK who are hilarious, in Trick they side characters aren't much but they're also hilarious

Similar vibes of serious and jokes mixed together, the gags are peak comedy and the characters are lovable.

Main differences:
1-Trick is about occult and deals with people claiming to have super powers whereas in Jikou Keisatsu they deal with crimes and murders that have passed the SOL.
2- In Trick, the FL is the smart one and the ML is just a follower who helps sometimes, they make a great due, in JK the ML is the smart one and the FL is a cute follower.
3- There a lot of sidekicks in JK who are hilarious, in Trick they side characters aren't much but they're also hilarious

when the first time i saw trick The Files of Young Kindaichi came into my mind the same style and both of them old dramas