Peach Airlines – Bringing Badminton Racket

Hi all, was wondering if anyone has experience with carrying a badminton racket in a normal backpack on Peach Airlines before?

Did Peach Airlines allow you to put your backpack with badminton racket below your seat?

Thank you!

Edit: Length 67cm Width 20cm 🙏 The racket’s handle will be sticking out of the backpack by around 20cm.