Whew, busy morning.

The only reader-added tag so far is "The ferocity of #24".

I think Kogasa-san's playin' FGO in panel 3. (My guess is that's Kiyo's background too.)

YangKoete said:

I think Kogasa-san's playin' FGO in panel 3. (My guess is that's Kiyo's background too.)

The right side doesn't look right for FGO - it's not My Room or a shop.

Jarlath said:

The right side doesn't look right for FGO - it's not My Room or a shop.

Might be the profile screens.

Lugin said:

Might be the profile screens.

It is. Specifically, Kiyohime's Second Ascension

While it's unmistakably her profile based on the color palette, I don't think she's rendered in enough detail to warrant tagging her.