The forced proximity of characters allows for micro-interactions that would be impossible in other settings.
If this is related to a specific title, providing more details about the medium (manga, story, etc.) would help in identifying the exact piece of media. Payback Touchinv A Crowded Train Mizuki I Upd payback touchinv a crowded train mizuki i
This was the moment where the script dictated she should shrink away, maybe move to another car, or endure it in silence. But Mizuki had had a bad week. Her cat had thrown up on her rug, her project deadline had been moved up, and she had missed the breakfast special at the bakery. She was fresh out of patience. maybe move to another car