Level(43) Physical Strength(2500) Minimal Striking Power(130) Maximum Striking Power(140) Defensive Power(65) Defense Success Rate(52)

It was a fish living in the deep sea. By the virtue of Hydra's sorcery, it got to have strong power. You can meet Bahamut right after passing by a rest area once you step into Atlans. Armed with sharp teeth and hard scale, it has strong tails. Using the tail hit skill, it makes adventurers who took their first step into Atlans shiver.

Level(45) Physical Strength(3000) Minimal Striking Power(135) Maximum Striking Power(145) Defensive Power(70) Defense Success Rate(58)

With the appearance of a beautiful mermaid, it makes rainstorm in a sea and also a fantasy. As soon as you are attracted by this beauty, you will become a dead body and float on the water of Atlans. Vepare who had been beautiful mermaid-shaped received energy of Hydra and changed to a monster, but instead, received powerful energy. It likes to act in a group and fires splendid energy wave to attack adventurers far away. If you don't have strong defensive tools and fast gloves, you will have a big trouble in getting away from Vepare's attacks.

Level(46) Physical Strength(3500) Minimal Striking Power(140) Maximum Striking Power(150) Defensive Power(75) Defense Success Rate(64)

Armed with Blue Wing, it moves fast by use of webs. It is an excellent solder of Atlans. Armed with bluish splendid armor and Blue Wing Crossbow, Valkirie makes adventurers (going for Hydra) go back. It makes a long-distance attack with Blue Wing Crossbow so it is hard for Dark Sorcerers and Fairies (who have weak defensive tools) to fight with.

Level(66) Physical Strength(8000) Minimal Striking Power(210) Maximum Striking Power(230) Defensive Power(150) Defense Success Rate(98)

It was a fish living in Atlans, but by Hydra, it gets mutated to a monster. Same race as Bahamut, it has received much stronger power from Hydra than Bahamut. It is not different from Bahamut in terms of appearance, but its offensive power and physical strength are two times stronger than Bahamut. It makes a short-distance attack in a group so it may be difficult to fight with Big Bahamut alone.

Level(68) Physical Strength(9000) Minimal Striking Power(230) Maximum Striking Power(260) Defensive Power(170) Defense Success Rate(110)

Much stronger than Valkirie, it uses ice sorcery. Silver Valkirie is hard to fight with as much as Balroc. It is the hardest monster among the monsters you meet on your way to Hydra. It is distributed evenly in the center of Atlans. It attacks with strong Blue Wing Crossbow and Ice Sorcery so there may be few character on MU Continent who can hunt Silver Valkirie.

Level(70) Physical Strength(10000) Minimal Striking Power(240) Maximum Striking Power(270) Defensive Power(180) Defense Success Rate(115)

It is the leader of Lizardman whose shape is a standing lizard. Lizard King that is guarding the final corner toward Hydra, attacks strongly by use of Resurrection Staff. It uses red Thunder Skill and short-distance offense. It acts in a group so with only some attacking, it can lead you to death. Imagine that monsters stronger than Balroc appear at a time.

Level(74) Physical Strength(20000) Minimal Striking Power(250) Maximum Striking Power(310) Defensive Power(200) Defense Success Rate(125)

As a subordinate of Kundun's like Kundun's right arm, it hid itself in Atlans after stealing Kundun's sealing stone.Hydra that is located in the end of Atlans has a big body and four sea worms on its head. As much as such a large body, it has the best defensive power and physical strength. The strong energy wave that Hydra shoots is the overall attack so you can fall down if you are around Hydra. His physical strength of 20,000 is felt not to fall down at all under any attacks.