Lantern

Lantern is a character in Skull-Face Bookseller Honda-san and works at the Bookstore. They are in charge of the Shu-E-sha section of the bookstore. Lantern is one of the sternest employees at the Bookstore. They often take an authoritative tone and are one of the most senior employees at the store. As they are in charge of the Shueisha publications, it's likely that they are familiar with the manga published in Weekly Shonen Jump and the related publications.