Teruko has shoulder-length black hair parted back into two low pigtails tied with red bobble hair ties. Like her older brothers, she has amber/brown eyes with fair skin.
Throughout her appearance, Teruko wears a pale-pink kimono and a purple obi with square patterns.
Her and Shoichi followed the trail of blood left by Kiyoshi due to him sustaining a wound on his leg. They eventually ended up at the Tsuzumi Mansion where they waited in shock, unsure of what to do.