Futaba Marui 丸井 ふたば

She is the second daughter of the Marui triplets. She has a raging obsession for voluptuous chests. She is so athletic that she is able to leap across lakes, run faster than a motor-scooter and able to smash walls and doors without a lot of effort. However, she is oblivious to embarrassment leading to many hilarious situations, namely with Shin.