The 4th day of Holoctober had a prompt that left me with lot of choice, since Hololive has a bunch of girls with animal ears... But the first person who came to mind was Okayu, because I'm way too down bad for her, so I went with her
As for why she's wearing Mashu Kyrielight's Dangerous Beast outfit from FGO? Because it's hot and I though it'd fit her...

(Reupload because I needed to fix her eyes... if you saw the previous version that I deleted please delete it from your memory and replace it with the new one!)