Both of the ML's are thrust into detective work — He Is Psychometric's ML having been working hard to do detective work, while ZD's ML was forced into it to solve his own murder.
Both of the ML work hard, and they also stumble across their FL by accident.

The detective plot was what stuck out to me in the two, and while there are similarities here and there, they are also uniquely themselves. Definitely a good watch if you liked He Is Psychometric and want another drama with a similar vibe.