This is fine, right?

Sensei.

When he says ‘sensei’… he means me, doesn't he?

…Who else would it be besides you?

I am not a teacher.

....I didn’t think he'd end up not aging.

I mean maybe he's talking about you, y'know?

The two people who entrusted him with 「You take it from here.」 and 「I'm expecting great things from you.」

I'm happy, but...

Or Kusakabe.

You need to take better care of yourself, Yuji...