giyuu found a doll when he defeated a demon he took the doll. the doll didn't move at all and he decided to take it to the demon slayer corps

shinobu : giyuu since when did you like dolls?

Mitsuri : aaa giyuu so cute

obanai : what a shame

sanemi : which man likes dolls anyway?

rengoku : i support you if you like dolls!

gyomei : that doll... looks terrible..

Gituu : ignore them