Picero Agares, a freshman in Babyls Demon School’s Abnormal Class, exudes a laid-back aura while harboring unconventional talents. His disheveled uniform features an unbuttoned blazer draped over a pajama shirt, sleeves swallowing his hands, paired with socked feet. A whimsical sleep mask adorned with lifelike moving eyes and a snug sleeping cap obscures his face, which—when revealed—echoes ethereal Netherworld legends with its striking features. A master of lethargy, Picero prioritizes naps yet unpredictably springs into decisive action. Though easily irked by disturbances, he regrets snapping at companions. Training and trials like the Harvest Festival gradually ignite his sense of duty, particularly in shielding others. His bloodline ability, *My Area*, lets him warp terrain, initially crafting sleep-friendly zones. Under Lady Vepar’s tutelage, this power expands to erect intricate castles, sense magical currents, and even command water by redefining it as “ground.” At Walter Park, a festive mask swap by Ronove exposes his hidden visage, leaving onlookers awestruck. Partnering with Gaap Goemon during the Harvest Festival, he constructs a protective castle, begrudgingly sheltering peers yet accepting their thanks—a feat boosting him to Rank Gimmel. In the Heartbreaker Operation, his exasperated cry—“I’m just doing nothing!”—sparks his team’s resolve. Later, he confronts Gaap during a breakdown, pledging to halt him if necessary, cementing their turbulent but steadfast bond. Ranking up from Aleph to Daleth mirrors his growth. His dynamic with Gaap shifts from friction to camaraderie, marked by casual first-name use. Mentored by Lady Vepar and trusted by classmates like Iruma Suzuki, Picero navigates alliances with quiet impact. Trivia notes his namesake—a Hell-linked duke tied to earthquakes—and his 5kg frame, species-typical yet baffling. His familiar, “Shisho,” and the occasional peer-bestowed title “Lord” hint at unspoken reverence.