Bangchan is your brother (Along with I. N and Lee know) . You have Alexithymia, it means you can't express, identify or feel emotions

Your 13y [Female] and bangchan is 18y, Lee know is 17y and I.N is 15y(in this pov).

it's 7PM, your in your room, still haunted by that question that bangchan asked you "do you love me?"