The red samurai reference? It's to Shinkenger. Shiba Kaoru was the alternate red ranger in Shinkenger
I need to rewatch shinkenger, I should've known that.
Nah, only reason why I even got it was I'd just watched Linkara's Samurai review a couple days ago, so the name "Shiba" was still fresh in my mind. That's what tipped me off.