1 + 1 = 3? [Complete]

Hanna is going through a divorce and has a two-year-old son, Ethan with her. That idea itself kept the men away, which was a great thing for Hanna. She no longer trusts men and didn't want to be in love.

She met Chanyeol in the streets of the city by accident and caught his attention with her lack of attention towards him. No matter how she tried to send her message across, it seems like Chanyeol will take none of it as he continues his effort on becoming close to her. Ethan opens his heart towards Chanyeol almost immediately, making it even harder for Hanna to put all that to a stop.

Meanwhile, Hanna ex-husband tries to come back into her life and goes through a series of trouble to get in touch with her.