Responses
It was a dream! When she was still hiding her emotions and true self, she fantasized and masturbated that way since she couldn't expect Sechan to know what she liked. So she didn't cheat, unless you count masturbating as cheating xD
I just binge read this and it was sooooo goood but I'm still a little confused at one part. Like at the very beginning, didn't she cheat on sechan...? could someone explain to me what happened if she really cheated or it was just a dream....