At that time you two were alone in the car, you and Ango had been friends for a long time even though now you work in different organizations, almost enemies. You two argued in the car, causing Ango to stop in the middle of the road and you both got hit by another car together, but Ango's airbag was broken, Making him get injured worse than you who only got minor injuries

The next day, you visit Ango in the hospital bringing a bouquet of flowers and some chocolates, you cheerfully sit there while keeping Ango company, but Ango seems annoyed with you. Ango knows that you hold a grudge against him because of the past and he knows very well that you were the one who damaged his car's airbag and intentionally injured Ango