Baby Genya has a habit of picking up random things and bite/eat it.
Sanemi can run really fast, mainly because he needs to stop Genya asap whenever he tries to eat a pebble again, even if he's on the other side of town.
It's like a natural instinct as the oldest brother. He often get these feelings where it's just like "oh shit I feel like Genya's trying to eat grass again".
(headcanon idea in courtesy of some fellow discord friends)
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kny headcanons
Acaki have no time to finish my homework but guess what? i have all the time to write stupid headcanons of our precious children and cry over the manga [Warning: manga spoilers] Disclaimer: everything written in this book is not accurate nor canon, it...