All bugs have been taken care of, so either you haven't deleted your last game version (1.0 or 1.1) before installing version 1.2. Then, restarted with a fresh save (do not reload a save from previous versions. OR, you might also be unsure how to proceed in the story itself (but that's a walk through issue), So after Seiko's solo stuffing moment, she runs to the bathroom, go the the bathroom door, MC says he should give her some space and decides to take care of the boxes in the living room.