From which chapter should I begin if I want to read Doyoon and Seungho story ?

you should read it from the beginning to understand their characters ... they aren’t good guys

ah shit ! Thanks to inform me ! I thought they were cute >< wrong impression

I hated reading their story lol not satisfied with their ending

Me neither. Not a clear character development

Exactly I don’t even think he was remorseful or saw the wrong he did