“Glass Heart”: A female assassin, raised by an underground organization, dubbed “the ultimate killing machine”. Racked by guilt after completing a mission, she attempts suicide… but is revived through a heart transplant operation. Only she doesn’t know… the heart she receives once belonged to Kaori Makimura, one half of the “City Hunter” duo. Only he doesn’t know… Ryo Saeba spends his days mourning the loss of his beloved partner. Guided by one heart – with two souls, “Glass Heart” appears before Ryo;- the legendary “Sweeper”, the protector of peace in the underworld of Shinjuku…

Asaka, the prison’s nurse, is leaving her post to her gorgeous granddaughter Yuki, who will bring a lot of troubles and chaos in the life of the people around her, starting with detective Tatsumi, her childhood friend and now her neighbor.