The Deadly Demon (Japanese: キラーデーモン Killer Demon) is a boss that appears in random quests given by the Youngest Fab Fairy. It can also be found in temporary dungeons and in New Lumos as a regular enemy.
The Youngest Fab Fairy is sick and tired of eating salad every day and wants something sweet, she tells you that tucked away in a hidden spot in Karkaton is a super sweet snack, she tells you that she's going there and demands you come with her, outright telling you "and you're coming with me!"
|Action name||Description||Chance to use||Hit rate|
|Attack||Hits a Mii with its morning star.||60%||100%|
|Anxious All||Feeds on the team's fears which may cause the Anxious status. They will not move, however, they may cling onto teammates, preventing them from performing any action but boosts the relationship slightly. If a Mii is already anxious, the effect may last longer.||40%||20%|
|One More Time! (auto)||Attacks again in a single turn.||-||-|
Tip: You will be fighting three of these during the Youngest Fab Fairy quest, they are extremely powerful. Tons of Sprinkles, a healer, and a good multi-hitting attack, like a Mage with Mega Explosion, are recommended. A Thief and a healer with the Cool personality should also help, as they can dodge attacks. You should wait until you're at least level 23+ as this is extremely difficult. Try to make good use of the Safe Spot while you're at it. Additionally, they are one of a few bosses affected by one-shot moves such as the Cleric's Righteous Anger, the Chef's Monster Dinner, and the Imp's Demonic Whispers.