There's more than one way 😗

It's the way he touches and lingers on her grave post to thank her

the opening has that one puzzle that shows what I think looks like a younger seven?

In another shot you can see the cut on his back. Maybe he's in the middle of training ? Fighting something?

And then there's this guy that shows up during episode 1 on the bridge

^ this is the most reaction he's had lol

Exasperated Qi

And you can barely tell his expression changed from screenshots here too

Lol wait

I need to desperately know if Qi laughed here

Look how mad he is from getting hit

Truly a Seven way to end a fight

But also