Sinmi core is a new aesthetic. This aesthetic is for people who like to act quirky, not like other girls/boys, emo, dirty minded, and more. The typical outfit a Sinmi core person would a pair of grey sweatpants and some hoodie on a slow boring day, but Sinmi core people don’t mind dressing to impress someone.
“Hey whats ur aesthetic?”
“Oh my aesthetic is sinmi core”