Concerned

Kageyama notices that Hinata has been acting weird. Certain objects has gone "missing". Sometimes there were teeth marks on random objects like paper or pencils.

Inspiration from the untranslated doujin: Kasasagi No Nodo by Mochisuke

... okay, I admit it. I'm writing this because I'm salty about the fact it's not translated, so I'm making my own story of it.