So my theory is, Mincheol got involved in some deep shit that got him drowning in debt which he passed to Haesoo. So, Mincheol is 90% dealing with shady people before and maybe one of the victims that got roped on whatever Mincheol was doing is Taeha’s mom. Taehee called him illegitimate so his mom might be from a poor background which is usually an easy target by those shady people.
So my theory is, Mincheol got involved in some deep shit that got him drowning in debt which he passed to Haesoo. So, Mincheol is 90% dealing with shady people before and maybe one of the victims that got roped on whatever Mincheol was doing is Taeha’s mom. Taehee called him illegitimate so his mom might be from a poor background which is usually an easy target by those shady people.