Each box is a minimalistic depiction of a mask from The Legend of Zelda: Majora’s Mask. This is clued by the flavor text and the The Legend of Layton comic books below the boxes.

Garo’s Mask	Bremen Mask	Don Gero’s Mask	Bunny Hood	Mask of Scents
Gibdo Mask	Mask of Truth	All-Night Mask	Captain’s Hat	Keaton Mask
Giant’s Mask	Kafei’s Mask	Zora Mask	Kamaro’s Mask	Romani’s Mask
Great Fairy’s Mask	Blast Mask	Circus Leader’s Mask	Goron Mask	Fierce Deity’s Mask

Each of the four comic book covers further clues a characteristic that a subset of the masks embodies. Each subset of masks, when looked at from the orientation as clued by the comic book, forms the shape of a letter.

Reading all four letters in comic book order gives the final answer, LAMP.