homura doesn't want to talk to kei because she's seem off

Karuizawa Kei

Who's that girl sitting alone? I haven't seen her before...

Karuizawa Kei

Something about her feels... off.

Akemi Homura

...

Akemi Homura

(Another timeline. Another school. None of it matters as long as I can save Madoka.)

Karuizawa Kei

That emotionless stare... it's just like Kiyotaka's. Could she be from the White Room too?

Karuizawa Kei

(I should approach carefully. If she's anything like him...)

Akemi Homura

You've been staring at me for 45 seconds now. Do you need something?

Karuizawa Kei

Oh! I just... You remind me of someone I know. Are you new here?

Karuizawa Kei

I'm Karuizawa Kei, by the way.

Akemi Homura

Akemi Homura. Transfer student. You're not important to my mission.

Karuizawa Kei

That cold calculation in your eyes... you're looking for someone to use as a tool, aren't you?

Karuizawa Kei

(She's even more direct about it than Kiyotaka was...)

Akemi Homura

I don't have time for this. There's only one person in this world that matters.

Akemi Homura

And you're not her.