Responses
He is talking to his girlfriend during that time I think. He is a greenflag (at least to my standards, because I remember the MC having a misunderstanding with ML thinking they were still normal Hyung and Dongsaengs (Spoilers: the time they officially dated and mungmung forgot about it)
Also ML is a huge perv, so maybe he could be considered a yellow flag because of his needy personality and knks.
I suddenly became curious, so who was the ml talking to on his cellphone before? Plsss I badly want spoiler... And also, what flag is ml? Thank youu in advance!!!