Jun Sakakibara

Dr. Akiba, a rather perverted scientist, developed a series of sex robots, and Type 100 is his newest creation. She has highly advanced artificial intelligence — so advanced that she refuses to become Dr. Akiba's sex slave as he had designed and escapes from his lab. She meets college student Shunsuke Kubo and decides to stay at his apartment. However, as she is designed to be a sex robot, she interprets everything Shunsuke says in a sexual manner.

長野から修学旅行で東京へやって来た高校生たち。自由行動の時間、東京観光を楽しむ同級生たちや、ホテルに誘う彼氏のノブから離れ一人別行動をとるアヤ（キヨミジュン）。彼女には東京での目的があった。それは、両親の離婚で離ればなれになった義兄に会うこと。ノブのことは好きだが、どうしても義兄のことを考えてしまう自分の気持ちを、会って確かめたかったのだ。彼女は義兄の元へと向かう。それが、悲しい旅の始まりになるとも知らずに……。