"Regaining consciousness after nearly losing his life to Akutagawa, Atsushi is paralyzed by the thought of inviting more death and destruction upon his companions at the Armed Detective Agency. But before he can make good on his vow to leave the agency, the Mafia sends Ryuurou Hirotsu -- of the merciless Black Lizard group -- to storm their offices! Between the Black Lizards and the bomb-tossing Motojirou Kajii, and the demure, kimono-wearing Kyouka...

"Jane is incredibly plain. Everyone says so: her parents, the villagers, and her horrible cousin who kicks her out of her own house. Determined to get some semblance of independence, Jane prepares to propose to the princely Peter, who might just say yes to get away from his father. It's a good plan! Or it would've been, if he wasn't kidnapped by a mermaid. With her last shot at happiness lost in the deep blue sea, Jane must venture to the world underwater...