The younger sister of a cute girl with pigtails got her period, took off her sanitary napkin, and touched the sheets for a short time

A cute and adorable girl born in 2005 with pigtails, her younger sister got her period, took off her sanitary napkin, and touched the sheets for a short while, and they were covered in blood.
2005年生まれの、おさげ髪の可愛くて愛らしい女の子の妹が生理になり、生理用ナプキンを外してシーツに少し触れたところ、シーツが血で覆われてしまった。
呆萌乖巧可愛05後雙馬尾美少女,妹妹大姨媽來了,衛生巾脫掉沒摸壹會,床單就全是血