Bay Max (Shogakukan Junior Bunko)

[Machine Translation] Hiro is a boy genius who graduated from high school at the age of 13. At his older brother Tadashi's university research presentation, Hiro shows off a microbot he invented and receives a huge ovation. However, Hiro loses his brother in an accident that night, and his heart is closed to the world. Hiro's heart is healed by Baymax, a care robot left behind by Tadashi. Hiro wonders about his brother's accident and decides to modify Baymax to find out the truth. But before Hiro and his friends, a powerful enemy appears... From middle grades.

ヒロは、13歳で高校を卒業した天才少年。兄タダシの大学の研究発表会で、みずから発明したマイクロボットを披露し、大喝采をあびます。けれど、その夜、兄を事故で失い、心をとざしてしまいます。そんなヒロの心を癒やしたのは、タダシの形見のケア・ロボット、ベイマックスでした。兄の事故に疑問を感じたヒロは、ベイマックスを改造し、真相をさぐることにします。ヒロと仲間たちの前に、強大な敵があらわれて―。中学年から。