Sameko

Sameko (サメ) is an alumnus of the same hero school as Rumi Usagiyama, of whom she is friends.

Appearance
Sameko is a young woman with shark characteristics in her physique, such as sharp teeth and a dorsal fin on the top of her head. She has long dark hair, large rounded eyes and almost no nose.

Underground Masquerade Arc
Sameko attends a Hero School in Hiroshima, where she met and befriended Kameko and Rumi Usagiyama, whom she called Ruko

While on a school trip in Osaka city, the three friends get lost on their way to visit the Tsutenkaku Tower. Fortunately the trio run into a young Fat Gum who kindly gives them the correct directions before continuing to patrol the streets. The girls thank him for his help, and prepare to continue with their trip, but Rumi catches a whiff of a nearby battle. Before Sameko and Kameko could stop her, Rumi leaps away in the direction of the place where said battle takes place.

Quirk
Unnamed Shark Quirk: Sameko's Quirk gives her attributes of a shark. Not much is known about the abilities it provides.

Trivia

 * Sameko is a reference to the Japanese myth of the.
 * The "same" in Sameko's name is homophonous with the Japanese word for "shark" as a reference to her Quirk.