Mikado Ryūgamine, wani saurayi wanda yake sha'awar rayuwa mai ban sha'awa na babban birni, ya koma Ikebukuro don halartar Kwalejin Raira tare da abokinsa na ƙuruciya Masaomi Kida, wanda bai gani ba tun yana saurayi. Bayan sun haɗu a tashar jirgin ƙasa, sai suka fita don bincika titunan Ikebukuro. Masaomi ya gargadi Mikado game da mutanen da ba ya son ƙetarewa a cikin birni kamar mutum mai ƙarfi da ƙarfi mai ƙarfi kamar Shizuo Heiwajima, dillalin bayanai Izaya Orihara, da ƙungiyar asiri da aka sani da "The Dollars". Bayan haɗuwa da wasu daga cikin haruffan gefe, Mikado ya rayu wani almara na gida da ake kira "Black Rider" wanda ke yawo a kusa da Ikebukuro a kan babur mai baƙar fata wanda ake jita-jita kamar doki kuma wanda ba shi da kwalkwali a ƙarƙashin kansa.
Kwalejin Raira