Okay, let’s talk about Sayu’s age. This little ninja has been bugging me for a while now. I mean, I started digging into this because I was curious, right? It all began when I was playing the game, and I noticed how tiny she is compared to the other characters. My first thought was, “Is she a kid or what?”

So, I started asking around, checking out what other players were saying. Some people were like, “She’s gotta be around 14, maybe even 17.” That seemed a bit old to me, considering how she looks and acts. Then, I saw others comparing her to characters like Barbara and Bennett, who are, you know, on the younger side. That made more sense to me.
Then, I remembered this one time Sayu mentioned something about how everyone her age is twice her height. That got me thinking, maybe she’s not as young as I initially thought. I mean, if she’s comparing herself to people like Yoimiya or Ayaka, who seem to be young adults, she might be older than a little kid, right?
I even tried to find out her birthday, thinking that might give me a clue. Turns out, it’s on October 19th. Okay, cool, but that doesn’t really tell me how old she is, does it?
Here’s what I did next:
- I spent hours going through all of Sayu’s dialogues in the game, trying to pick up any hints about her age. Nothing too obvious there.
- I read a ton of stuff online, forums, articles, you name it. People have so many different theories, it’s crazy! Some say she’s stopped growing, others think she’s just a late bloomer.
- I started comparing her to other characters, trying to see if I could figure it out based on who she hangs out with. She’s often with the Shuumatsuban, and some of them seem older, but that’s not a definite answer either.
Honestly, after all this digging, I’m still not 100% sure. It’s like the game developers are keeping it a secret on purpose. It’s kinda cool, though, it makes her character more mysterious.

But, if I had to guess, I’d say she’s probably somewhere between a young kid and a young adult. Maybe like, she’s in that weird in-between stage, you know?
My conclusion?
Sayu’s age is still a big question mark. I think that’s part of what makes her an interesting character. Maybe we’ll get more clues in the future, or maybe it’ll always be a mystery. Either way, I’m still gonna enjoy playing as this tiny, sleepy ninja.