Kuroki wants badly to rehabilitate Mythos, the young boy caught up in the Logos incident.  When an unmanned bike starts making strange appearances on the roads of Tokyo, he sees his chance to allow Mythos to contribute to society by solving the mystery.  The bike appears and disappears without causing any harm or hurting anyone.  But Mythos thinks that instead of a bored thrill-seeker, the culprit might be a more dangerous foe...
I asked all around the city, and no one saw
سألت في كلّ أرجاء المدينة
Ich habe mich in der
gesamten Stadt umgehört,
Pregunté por toda la ciudad
He preguntado por toda la ciudad
J’ai posé des questions 
sur les lieux,
Ho chiesto in tutta la città,
Perguntei na cidade toda e ninguém viu