Responses
I interpreted it as him saying it like "hm?" or something like that. Idk if that made sense
It usually stands for No Good so here i guess, either in a perverted way or in an off limit way
In here It's like "huh?" "hm?" like when you read manhwa and there's this "응?" when someone calling you or asking about something or just expression of shocking/puzzled
Thank you (≧∀≦)
What does it mean ?