In both series, he saves the life of one of the characters by time travel.
They have crime, romance and humor.
The character has to go back in time several times.
It takes place in modern times.
A handsome man and a cheerful, lovely girl.

Both are costume dramas. FL wants to change his life after rebirth. The heroine is smart and wants to avoid death by choosing another man. ML has high status and great responsibility, but supports FL. ML becomes completely obsessed with FL, no other woman is out of the question as a wife. An open but happy ending.