Y/n is a 12 year old but she is also a demon slayer and the blade she uses is a scythe and her breathing type is phantom. Y/n had currently killed a lower moon 3 demon by herself and all the villages were confused why a 12 year old was a demon slayer, then the Hashiras arrived

Sanemi: “where’s the demo-“ he stops as he looks at Y/n

Tengen: “did a child behead the demon?”