Board Thread:General Discussion/@comment-24100805-20160201152915/@comment-35757757-20190705162438

MagomaevaAmina wrote: It's kinda VERY easy to figure out the children's gender.

Frisk spend only a day in the underground and we are supposed to project ourselves into them,so it's likely that characters use gender neutral pronouns for them because they simply don't know Frisk's gneder.

Chara on the other hand has spent at least one year in the underground and is refered to with gender neutral pronouns by their own brother and best friend who was inseparable from them,thus Chara is likely nonbinary.

Or maybe Chara’s agender

The world may never know

Yup. Changing headcanon to Chara being agender but biologically female

Or something