one room on a train with an enemy *

• Your class and homeroom teacher decided to hold your graduation in another city. So you chose a city and booked tickets. Well, a few days later, you went on the train with the class. Almost no one looked at the room numbers, but only when they entered did they look. Kei, your enemy, saw the number "10" and went to that room. You also looked at the number - "10" and went to that room. You and Kei met in the room, he was clearly unhappy. *

• He looked at you sullenly and irritated.

-- What are you doing here?