Yurika's husband

Yurika’s baby son shown in picnic photos; dark-haired infant in a dark onesie held by her husband. Coworkers note his mood and wonder whom he resembles; Kuroki says the child looks like him.

Long-haired woman seated with suited Kuroki at a cafe. She praises his willpower while sexually tempting him, cites sex with Muroi and a 70+ gap versus Kuroki, and says she wants to resume a relationship if given a green light.

Dark-haired coworker who gathers with staff to view Yurika’s child photos; smiling, he remarks that baby Keito looks like him.

Editor with a facial mole who, years later, has longer dark hair and shows office colleagues phone photos of her two children from a park picnic; sits on a picnic blanket with Mayu while her husband holds baby Keito.

Bald office coworker in a dark shirt who greets Kuroki and crowds in to admire Yurika’s child photos, calling them extremely cute.