Tsukiko is extremely shy girl who has a very petite body, She does not only have small-sized chests but has to be very short too since she was once mistaken as an elementary-grade child, that big orange-doll in this Tsukiko Tsutsukakushi Cosplay picture is enough to show how cute Tsukiko was.
Tsukiko Tsutsukakushi has a black-brown short hair with a hairpin and a pink ribbon on her right side hair, though in this Tsukiko Tsutsukakushi Cosplay picture she has a little different hairstyles but Bell is perfectly fits as Tsukiko, I think it's because Bell has the same cute body as Tsukiko's body in Manga.