Must have subtitles

Preferably titles after 2010

Country doesn't matter

Happy Ending is a must 

 18-sai, Niizuma, Furin Shimasu. (won't seem like it at the beginning, but there's a big twist)

Embrace in the Dark Night 

My Lethal Man 

Well-Intended Love (maybe? ML's calculating is directed toward his way of getting her to marry him and stay with him)

Cheese in the Trap
I Love My President Though He's a Psycho