She took an instant liking to her. Treat them mean, keep them keen, that was Hirai’s motto. - Toshikazu Kawaguchi

We can never truly see into the hearts of others. When people get lost in their own worries they can be blind to the feelings of those most important to them.

Doing things differently from everyone else would normally antagonize those making sure no one went against the grain, but no one ever thought that way with Kei. She was always everyone’s friend; she had that sort of effect on people.

At the end of the day, whether one returns to the past or travels to the future, the present doesn't change.