Kureon

Kureon is a member of the Druidon Tribe who creates the Minosaurs and a major antagonist in Kishiryu Sentai Ryusoulger. He is an androgynous mushroom creature who creates the Minosaurs by infecting humans with his slime and feeding off their negative emotions.

History
Kureon first appears with a squad of Drunn Soldiers to attack Ui Tatsui. Kureon attempts to infect her with his slime, but Koh and Master Red appear transformed into RyusoulRed and fight off Kureon's soldiers, causing Kureon to flee. Kureon goes back to Tankjoh and asks the general if the two who fought his forces were the Ryusoulgers to which Tankjoh confirms, noting that their temple must be nearby.

Kureon later accompanies Tankjoh during his assault on the Ryusoul Tribe, in which the three Masters lost their lives and Tankjoh destroyed the Ryusoul Temple, the source of the Ryusoulgers' powers. However, Koh and his teammates managed to hold onto their powers through their spirit.

Kureon later approached Ui from behind and asked if he could get her autograph. Happy that someone recognized her from her YouTube channel, Ui turned around only to scream once she saw it was Kureon. Kureon then told her to make it out to "Mr. Kureon" before shooting a glob of his slime into her mouth, creating the Medusa Minosaur from her.

When the Ryusoulgers attempted to destroy his Kraken Minosaur, Kureon appeared with a squad of Drunn Soldiers and angrily told them not to destroy him before he was all grown up, sending his Drunn Soldiers to attack them.

Following the Kraken Minosaur's destruction, Kureon attempted to create another Minosaur, but was annoyed at everyone was running away from him. He was soon confronted by RyusoulBlack and Green, who attempted to kill him to stop the Minosaurs from being created. Kureon summoned Drunn Soldiers and attempted to flee, but the two Ryusoulgers defeated them and caught up to him. Cornered, Kureon attempted to bargain with them and asked if they could fight another day but the two refused. Tankjoh then appeared and attacked both Ryusoulgers to defend Kureon. The other Ryusoulgers soon showed up to assist their comrades but even at 5-to-1, the Ryusoulgers were no match for Tankjoh and were defeated. However, RyusoulRed refused to give up and continued fighting. RyusoulGreen and Black attempted to assist their comrade, but Kureon sent the Cerberus Minosaur he created while the Ryusoulgers were distracted to attack them.

Kureon later takes the Cerberus Minosaur to a water purification plant and tells him to put his poison into it so it will wipe out the humans, but RyusoulBlack shows up to stop him and destroys the Minosaur with his Dino Slash before it can poison the plant, causing Kureon to flee. Kureon later appears to cheer on Tankjoh as he is fighting KishiRyuOh, only to flee when Tankjoh is defeated. Later, as he was walking through a forest at night, Kureon loudly complained about Tankjoh being defeated, proclaiming that even he could defeat Tankjoh. His boasting was quickly silenced when Tankjoh revealed himself to still be alive.

Similar to Ui, Kureon decided to start a YouTube channel and had some Drunn Soldiers help him film a video where he reported on the meaning of the word "wonton". However, his video was interrupted when RyusoulBlack came to him demanding information on the cure for the Cerberus Minosaur's poison, but Kureon refused to tell him anything. Kureon and his men then fled as RyusoulBlack attempted to give chase, only to fall ill due to the Cerberus Minosaur's poison spreading to him. Kureon later reported to Tankjoh that the poison would soon spread to all the Ryusoulgers. Tankjoh was pleased, proclaiming that he would conquer the Earth once the Ryusoulgers were all dead before letting out a sinister laugh. Kureon attempted to laugh too, but Tankjoh silenced him and told him he doesn't get to laugh.

Kureon later brought the elder brother Cerberus Minosaur to the city's water supply so it could poison it but RyusoulRed and Blue, having predicted that Kureon would try to poison it again, showed up to defeat the Minosaur and recover a sample of it in order to cure their teammates. However, due to both of them being poisoned, the Minosaur was able to beat them down until Koh lured it into biting his arm and snapped off one of its fangs, causing it to freak out and run away with Kureon chasing after it. With the antidote from the fang, the Ryusoulgers were able to cure themselves, allowing them to go and confront Tankjoh. As the Ryusoulgers beat back Tankjoh in the combined KishiRyuOh Five Knights, Kureon sent the Cerberus Minosaur to attack them to assist Tankjoh, only for KishiryuOh to quickly destroy it, curing Sanae. Kureon then fled after hearing that the release of Tankjoh's earthquake energy would destroy everything within 10 kilometers.