@Luxen
A stolen button being grounds for removing a child from their foster family doesn't make any sense; and this manga is weird so it doesn't
have to make sense, but I'd at least like to see them be against it instead of it being immediately glossed over.
Like have some prior incidents that already caught social workers attentions and make this be the possible final straw, or have this weirdo mother threaten to use her influence to send Hitori to an orphanage. This seems like a significant point in the plot and I wanted more build up to get to it.