My best friend also likes Venti from Genshin Impact

What do I do? ​

Nothing.

Explanation:

It's a fictional character that has no consciousness. So what if people "like" the character? It's not like the character likes anyone back, or can suddenly become aware of your emotions.

The fact that you see your friend as a potential threat for holding a similar interest in the fictional character holds no basis for logic.

The truth is, if you for some reason are upset that someone you know likes the same fictional character you like, then you are being petty.

"girls"

explanation:

a subject of a sentence is a noun or pronoun that shows who/what is performing the action (or verb) of the sentence.

in this case, the sentence states that the girls see. the girls are the ones who are performing the action, so they are the subject.

hope this !