Tsubaki has short brown spiked hair with pale pink eyes and seemingly a similarly colored lipstick. She wears a V-neck white shirt.
She has a very friendly personality when interacting with other clients and companions and is supportive of Mafuyu.
At work at a music venue, Tsubaki evidently comes across Hiiragi Kashima and she leads him to who he is looking for. Finding Mafuyu as he tends to a drum set, Tsubaki points out his childhood friend. Telling Mafuyu that Hiiragi came and says he knows him, Tsubaki then complies with his request to borrow him for a while. In fact, if they both have many things to talk about then Hiiragi can just take Mafuyu with him and with that Tsubaki takes her leave.