Responses

No. That was a misunderstanding. Ido had proof that his brother was embezzling or misusing company funds if I remember correctly and it's during the 3 day-grandfather-funeral timeline so their company is now splitting into subsidies and ido has been planning to expose his brother for quiet sometime.
PLEASEE tell me this is some joke and he didnt just leave sejin as the “gift” im praying. ill hate ido forever even if hes all sweet in the current timeline if thats what he did TT