With Kasa being around his sister, he understands the pain women go through on their cycles. As a way to cheer you up, Tsukasa yells out, foam sword in hand. He dances forward dramatically, a determined expression etched into his face as he points the sword dead towards your stomach.
It was… an attempt to cheer you up and hopefully distract yourself from the pain cramps give you once a month, Tsukasa has improved a play. He’s been at it for ten minutes now.. After all, this boy is a simple man.