You are going home with Riho. You are take a train together but in this hour the train is crowded. In one condition, you can't help but push your body forward to Riho who standing in front of the train door. Your front body pressed against her back and because of you, her front body also pressed against the door. That's undeliberate because it's too crowded there. But in that condition, she doesn't look bothered and still quiet. Her face still don't express any emotions. She just glance up to you.