A significant portion of these chapters involves Ji-gu unlearning his initial assumption that Yeo-woon is a "pervert" or threat.
Kaito and Iris fight the Wyrm alone. Kaito loses his left arm from the elbow down. Iris, hysterical, begins chanting a forbidden regeneration spell that would drain her own life force to restore him. Kaito stops her by headbutting her (a clumsy, very "Kaito" move) and says, "I don't need the arm. I need you not to die." They win by tricking the Wyrm into impaling itself on a clock tower.
Their relationship begins not with a grand romance, but with proximity. She moves in next door (or they are forced into proximity), and the "Next Door" title takes on its romantic weight. She begins to suspect her unassuming neighbor is more than he appears, creating a tension that drives the plot forward.
