Zaryusu Shasha

Zaryusu Shasha (ザリュース・シャシャ) is a lizardman of the Green Claw Tribe and the younger brother of Shasuryu Shasha. He is the wielder of Frost Pain, one of the four treasures within the lizardmen tribe, and is amongst the few surviving lizardmen who fought against Cocytus. He was the last to die, and was later revived by Ainz.

Appearance
Zaryusu Shasha is a lizardman with dark green and charcoal black scales just like his elder brother Sharyusu Shasha.

Personality
Zaryusu became a traveler and he was motivated by his determination, resolve and sense of duty to his tribe. When the tribe was threaten by the undead army, he showed that fighting alone is futile and convinced the tribes that only way to survive was to form an alliance with the other tribes.

Background
Zaryusu is a traveler, one who has decided to leave his village to see the outside world. While given a great deal of respect and status within the villages, they don't actually have any say regarding important decisions.

In Zaryusu's case, he is given even greater respect because he is the wielder of the magical blade known as Frost Pain which is one of the Lizardmen's four treasures. He is also the younger brother of the Patriarch who leads the Green Claw Tribe.

The Lizard Man Heroes Arc
While tending the newly established fishery farms of the tribe situated at the edge of the Green Tribe encampment, Zaryusu visits his older brother, Shasuryu Shasha. His brother praises Zaryusu's success in replicating the aquatic farming techniques he discovered during his travels. He comments that the cultivated fishes are more nutritious and healthy than the ones the tribe used to harvest in the wild. Zaryusu brushes aside the praises, admitting that the farm wouldn't exist had it not been for Shasuryu's support.

They are interrupted when the dark storm clouds rushes and later looms over the Green Tribe village. Sensing danger the traveler and his brother rush back to the village. Standing at the center of the village, undead messenger appears and declares the imminent destruction of the lizardmen at the hand of the Supreme One in eight days' time. After the undead vanishes in a cloud of smoke, Zaryusu attends a tribe assembly with his brother. The Elder Druid voices his opinion stating that it is hopeless to fight, as the magic displayed by the messenger is stronger by at least two fold compared with the magic cast by the elder. The option of fleeing the Wetlands is given thought, until Zaryusu reminds them that victory is still possible if they call out to the other tribes. Believing the only way to defeat this new foe is to unite their forces Zaryusu volunteers to gather the tribal leaders for a conference.

Many in the assembly object to this idea as it is unheard of for a traveler to be given such authority but their complaints are put down at the word of the chief who proceeds to hand Zaryusu the seal of the chief. After having a few words of support and regret with his brother Zaryusu, he and his pet hydra Rororo travel together to enlist the help of the Red Eye Tribe.

Upon reaching the Red Eye Village, Zaryusu becomes smitten with the acting Chieftain Crusch Lulu. He immediately proposes to her, causing her to be befuddled at his display of emotions. Later, on a more serious note, both discuss their race's predicament in the upcoming invasion. After some degree of urgency and subtle use of blackmail, Red Eye joins in the tribal alliance. Zaryusu, Rororo and Crusch then make their way to appeal to the Dragon Tusk Tribe.

There they are met with hostility, particularly Zaryusu as many members of the tribe are former tribesmen of Yellow Speckle and Sharp Edge, the tribes Green Claw had defeated in the resource war. The chieftain, Zenberu Gugu quickly demanded a duel with the traveler. The match ended with Zaryusu's victory, and Dragon Tusk's participation in the war.

The Invaders of The Large Tomb Arc
Zaryusu along with several other Lizardman are present in Nazarick at the time when the worker groups invade the tomb, doing some training in order to become stronger, he is Hamsuke's training master in order for her to learn martial art skills. He bears witness to the fight between Hamsuke and Erya Uzruth. The battle ends with Hamsuke's victory and learning a new martial art skill. Hamsuke has proven herself ready to train for the next stage with battle armor

The Craftsman of Dwarf Arc
Zaryusu has now become the father of a healthy baby boy that has the same albino skin as its mother, Crusch Lulu. He was summoned by Ainz along with Zenberu Gugu and the other lizardmen when Ainz came to their village to seek Zenberu for his aid in finding the Dwarf Kingdom.

At the same time, Ainz congratulated the new father and had stated a suggestion if he would like to join him in E-Rantel as part of his plan to integrate multiple races to live in harmony under his new nation. While at first he was nervous to respond for a right answer, Ainz assured him to speak his mind and he requested that he would prefer not to go for the sake of his family and instead took the proposal of finding other lizardmen to go in his stead.

Trivia

 * Zaryusu and his fellow lizardmen visited the Great Tomb of Nazarick to train and went back to the village to spread the amazing worlds that they saw inside Nazarick.
 * Zaryusu and his fellow lizardmen stay at the 6th floor where there are ten log houses built for them.
 * Zaryusu and his fellow lizardmen were training in a large room where Shalltear governs and they were wearing collar around their neck with a broken chain hanging off it, which might be power suits that Ainz promised to lend to the lizardmen to make them stronger.

Quotes

 * (To Crusch): "It was love at first sight. Besides, death may result from the war this time, and I do not wish to leave any regrets behind."