ペン入れ

Also known as finisher, embellisher, comic inker, Inking (drawing technique)

The inker (sometimes credited as the finisher or embellisher) is one of the two line artists in traditional American comic book production. In his seminal work Understanding Comics, cartoonist and theorist Scott McCloud categorizes the final execution of lines -- traditionally the domain of the inker -- as the "Surface" stage of the six-step creative process, noting that this is the aspect of the work most immediately apparent to the viewer.