Lanfeust of Troy; Lanfeust of the Stars; Cixi of Troy: Thanos, once the most brilliant student of Eckmul city, succumbed to a hunger for power and cruelty. Becoming a pirate, Thanos and his men would attack ships, slaughter and rob those aboard, and rape the women. When he captured Lanfeust himself, Thanos tortured him by slicing him open and cutting his eyes out. Under the guise of Baron Averroes, Thanos intends to sack the city of Or-Azur, with no virgins left. Conquering Eckmul, Thanos kills those who he thinks can oppose him, and forces Cixi to kill Thanos's own brother by using her magic to boil his blood in his body. Forcing the sages to serve him, Thanos threatens their families, and when hunting a vigilante, Thanos allows his pet monsters to eat a random bystander to prove a point. During his tyranny, Thanos has a pirate crew thrown be fed to a Hydra, allows Duke Kraniol to experiment on captives, and plans to kill all the sages to become even more powerful. Thanos also repeatedly abuses Cixi, and when she gets pregnant with his child, he accelerates the gestation, not caring that Cixi would die in the process. After joining Prince Delhu in his conspiracy, Thanos coldly murders his partner Glace who loved him, abducts Lanfeust and Cixi's son Glin, and drugs Glin with a substance that causes murderous urges before killing Prince Delhu to become the sole ruler of the Galaxy.
Odyssey: Lylth the Eternal is an alien who travels from world to world devouring souls and leaving dead planets behind her. Upon her arrival on Troy, she brainwashes the population of Eckmul under her control. Feeding of the energy of youth to get stronger, Lylth murders countless of children in her temple and coldly kills a father trying to save his child. Attempting to open the Stargate, she sacrifices two sages and seriously considers killing hundreds more when it fails. At one point, she compels one of her minions to strangle another for their late arrival. She then commissions the sages with the creation of a spell that would multiply and accelerate the gestation of children, hoping to get hundred per day. Lylth also attempts to drains the powers of, thus killing, the Magohamoth—the source of all magic—and uses Lanfeust as a Human Shield when cornered. Even defeated and rejuvenated to a child, Lylth merges with the Banshees and sends them all over Troy to annihilate all life.
Fanon Discontinuity: Many fans wish the series stopped with Lanfeust of Troy.
Drunk Lanfeust abuses his newfound power to create a dragon out of thin air. The dragon is too fat to fly... and instantly goes splat on the ground, giving the resident Fortune Tellerseveral years' worth of reading material.
Thanos learns where Lanfeust and Co. are. He interrupts a party in his honor, declares that his enemies will be dead soon and teleports to the reported location... only to come back a few seconds later asking for clothes, lots of clothes. Nobody told him Lanfeust had gone into the polar regions.
Harsher in Hindsight: In the first "Lanfeust of the Stars" episode, Glace, who by this point appears to be a future ally, makes a small demand to Hébus, to which he jokingly answers "You're in luck. I'm a boy who likes to serve." before doing what she asks. A few episodes later, Hébus gets enchanted and is magically forced to obey all of Glace's orders after she ends up being on the antagonists' side.
Moment of Awesome: the final battle of the first series, which involves Godzilla-sized energy clones beating the everloving crap out of each other... while over a densely crowded capital city.
Moral Event Horizon: Thanos asks Cixi to execute his own brother by boiling the man's blood inside his body. Doubles as Nightmare Fuel.
Nightmare Fuel: The death scenes are a lot grittier and more graphic than the art style would initially lead you to believe. Thanos's brother's death is especially creepy.
Seasonal Rot: Lanfeust Des Étoiles is generally viewed as much weaker than the original series. People complained about the very chaotic plot and that it was a vehicle for a hurricane of very oafish puns. Especially the puns.
Theiss Titillation Theory: Cixi, again. At one point she shows up in what is essentially a bikini, cut into strips, and those strips arranged in spirals for maximum effect.
