How about:
"Haunting Romance" or
"Addictive Romance" or wait for it, this is going to sound really Chinese:
"Kind hearted assassin girl who talks her targets to death." ;)
I would have written it in Chinglish for laughs, but there is always that fat white female SJW who is going to say "Ping Pong, that delivers my egg rolls, I bet he/she/1-72 would find that offensive". And I would be like, b****, watch some Cdramas, where Chinese people make fun of other Chinese people's eyes. That was a f***ing eye opener, no pun intended, when I saw Chinese people talking shit about other Chinese people's eyes. But, I wish I had intended a pun, it would be f***ing hilarious.