قسط 1: Ayumu Narumi کا Sayoko کو دھکیلنے کا الزام، جبکہ Hiyono اس کی دفاعی کارروائی میں مدد کرتی ہے۔

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The story begins with Ayumu Narumi getting blamed for pushing Sayoko Shiranagatani off the 5th floor. The crime inspector (his sister) Madoka and everyone else find him to be the only possible suspect, but he seems unconcerned. Enter, Hiyono Yuizaki, who offers to help him prove his innocence while referring to him as "Mr. Criminal". All the while Ayumu is slowly piecing the crime together. He confronts Sonobe, a new teacher at school, and tells him he will unveil his secret. Madoka, Ayumu, Hiyono, and Madoka's assistant find him on the roof and reveal him to be the culprit because he switched the girl's glasses, causing her to fall. (Source: Wikipedia)