Awevil appears as an elderly figure with grey skin, slit-pupil yellow eyes with black sclera, a long red beard and a gourd-shaped head with small horns. The kanji kyou (凶, "bad luck") is written on his forehead. He wears black and white priest robes, as well as straw sandals (zori). He carries a gnarled wooden staff and sits bow-legged on a floating purple zabuton.
As his name and Medallium Entry implies, he is incredibly evil, just for the sake of it.
In the Springdale Underground Waterway, the player must activate all 3 switches, the last of which is behind a Rank S Watch Lock, to raise the floodgate in the middle of the area. Behind it is Awevil, who can be challenged once a day until he's befriended through normal methods.
Awevil can be encountered in a similar manner to how he appeared in the first game, though instead of levers found throughout the Springdale Underground Waterway, here it is through three card keys that you'll need to collect and use at the floodgate in the middle of the Springdale Underground Waterway.
The Blue Card can be found in a chest on the Springdale business tower's 4th floor, which can be unlocked via a Baffle Board outside the building (Illoo is required to activate this Baffle Board).
The Gold Card is acquired after completing "The Secret Base" Request that is activated by talking to Alex near the sewer entrance in Breezy Hills.
The Red Card is given by the leader of the Sesame Club in the sewers, whose members are scattered throughout the sewers. The player must speak with all 10 of them by utilising the various sewer entrances around Springdale to speak with them from behind their doors. Once all 10 have been spoken to, speak with the leader to acquire the Red Card.
Once all three have been obtained, they can be used at the main floodgate in the middle of the sewers. Once all three are used, Awevil will appear, where he can be battled once per day until he's befriended through normal methods.
Awevil is befriended through the quest "The Calamity that Lurks Below...", the player must beat the game and have the S rank watch to take the quest however. Upon taking it, Awevil can be found under a hidden Yo-kai spot manhole in Downtown Springdale, if the player wins against him, he will be an auto-befriend.
Awevil can be found on Patrol Missions in Uptown Springdale and on VIP patrol. He is also a prize for the Big Boss Mission Hunt for Ultra Gargaros! as a White Dog Squad 1st prize
Alternatively, the player can free him from the Crank-a-kai with Awevil coins, which can be obtained by scanning QR codes.
In the Japanese version, Awevil, along with Kuroi Komasan, and Kuroi Jibanyan, can be freed from the Kuroi Crank-a-kai with 4500 Y money in the Kuroi Watch event.
Blasters T camp:"You won't find a more nefarious Yo-kai than me, kwee hee hee!"
Etymology
His Japanese name, "Yamimaro," is a combination of "darkness" (Japanese: 闇,Yami), and "maro" (Japanese: 麿,"maro"), an old-fashioned ending for male names.
His English name, "Awevil," is a combination of awful and devil. It could also be derived from the phrase "all evil."
His Spanish name, " Diablés," is a portmanteau of "Diablo" (Devil) and the corruption of "Vejez" (Elderliness).
His German name, "Maximalefiz," is a combination of "Maximal" (maximum) and "Malefiz" (both the German name of "Maleficent" in the original 1959 Sleeping Beauty movie and a German board game, invented in the same year, known as "Obstruction" in the US).
Origin
Awevil, like Greesel, is based on the youkai Nurarihyon, said to be the leader of the Hyakki Yakou (Hundred Demon Night Parade). In the original tales, he is described as an old man with an elongated head, wearing fine clothes or the garbs of a head priest. He'll infiltrate mansions at dusk, while everyone is busy finishing up on chores for the day, and sit down in one of the rooms pretending to be the lord of the house: he will smoke the master's pipe, drink tea and sample the expensive food, bark orders at the servants and generally make himself at home. Sometimes he'll even dress up like a wealthy merchant and walk around town, or visit red light districts and mountain villas escorted by his youkai underlings. In Shigeru Mizuki's GeGeGe no Kitarou, Nurarihyon is one of the recurring antagonists of the series.