Really sorry for not including the reason why Wendy left.

Here's the thing. Wendy was sick, and was forced by her strict parents to distance herself from Irene until she recovers, plus she studied abroad that's why it took two years for her to come back.

By the way, I have another one-shot in mind but I dunno whether to make it Wenrene or Seulrene.

I can't make a poll at the moment *too slow internet*
So comment down which pairing you want.