Its right when you are first taken to the sins compound and are getting introduced to them! Ive only met aria, and seraphina at this point but as im introduced to the other sins my character acts like im meeting them all again for the second time! My mc tells zalora its good to see her again despite never meeting, and reacts to finfir in a blushing/embarrassed way saying they met earlier in an interesting manner, yet ive never met them