Yumi

This started off really great, nice balance between her perspective and his to start telling the story right from the beginning, their first encounter and how everyone's life got entangled.

Nice crime, great whodunit, romance too is fantastic and characters are great.
But for me it should have ended at ep 23 with ep24 them catching the bad guy and ending everything related to the drugs case and the crime case.

İt needn't be 40 episodes at all, I got bored and wanted everything to end.

I would still recommend it because it was well done, but I wouldn't blame anyone for dropping it half way~