Maruki

丸木

Maruki is a retired concierge who is still occasionally called in for temporary assignments at the Hokkyoku Department Store.
He is quite popular among female patrons and for his magic tricks. While he is very knowledgeable about assisting guests, much of his expertise concerns businesses that have long since closed, owing to the fact that he worked there so long ago.
In volume 2 of the manga, Maruki is portrayed as a more robust man with somewhat long hair, a moustache, and a beard; this appearance suits his role as Santa Claus in the final chapter.