Why does this have the "1girl" tag? Kirara is male.

"Ooh a hidden comment i wonder what it could be about!"
*looks inside*
"Wow i wouldve never guessed!"

Guikoi said in comment #2579846:

Why does this have the "1girl" tag? Kirara is male.

Their hips are wider and their breasts are also larger here. It's kinda obvious that they’re being drawn as a woman. Even if you don't personally believe in their transition, you've got to be able to look at context clues.