At the dawn of existence, the Elder Gods, Titans, and the One Being were the only divine entities. After the One Being consumed the others' power, the Elder Gods defeated it using six sacred artifacts called the Kamidogu, shattering its body into the realms that became the foundation of all life. To prevent powerful realms such as Outworld from conquering the others, the Elder Gods created Mortal Kombat, a sacred tournament held every 500 years. A realm that wins ten consecutive tournaments earns the right to merge with another realm, while the champion gains extended youth until the next contest.

Liu Kang is the main hero and "Chosen One" of the Mortal Kombat franchise. An orphan raised in the Shaolin monasteries, he has mastered martial arts and the power of fire. His mission throughout the ages has been to protect Earthrealm from invasions by realms such as Outworld and Netherrealm.

Kung Lao is a Shaolin monk, a member of the White Lotus Society, and a direct descendant of the Great Kung Lao. He is world-famous for his iconic hat with sharp brims.

Johnny Cage (born Jonathan Carlton) is a narcissistic Hollywood actor and martial arts master. Initially entering the tournament just to prove his skills to skeptical critics, he evolved from a superficial comic relief character into one of the greatest defenders and leaders of Earthrealm.

Raiden is the eternal God of Thunder and sworn protector of Earthrealm. He serves as the primary mentor and father figure to Earthrealm's warriors, guiding them through the Mortal Kombat tournaments to defend their home against invaders like Outworld and the Netherrealm.

Fujin, the God of Wind and younger brother of Raiden, is a compassionate and steadfast defender of Earthrealm.

Lain Schneider Lindermann is a German teenager and Guest's assistant haunted by a troubled past and plagued by anxiety and emotional dependence. Lain often doubts herself and seeks reassurance from those she trusts. Nevertheless, her compassion, gentleness, and sincere concern for others make her a remarkably warm-hearted person. Though life gave her every reason to become bitter, Lain chose another path: to remain kind, to help others, and to fight for what is right. Age: 13-14. Appearance: Small size, Pale skin, Long Crimson hair, Doe and droopy brown eyes, large chest despite her small frame.

Adrya Maryam Saad Fakhry is one of the assistants and a rebellious Arabian teenager shaped by an abusive childhood and a difficult past. After briefly living in an orphanage in Switzerland, where she met Hugo Kurtz, and the two quickly formed a deep sibling-like bond, becoming inseparable despite having no blood relation. Her delinquent behavior, frequent swearing, and vaping habit often cause others to label her as a bad influence or a troublemaker. Beneath that hardened exterior, however, lies an incredibly compassionate, protective, and empathetic girl. Adrya may have learned to survive by acting tough, but she never allowed her painful past to completely take away her kindness. To those who truly know her, she is proof that a rough exterior can hide one of the gentlest hearts. Age: 14. Appearance: Medium size, White skin, Long dark red layered hair with face-framing pieces, Piercing on her right nostril, striking and smoky eyeliner, hollow reddish black eyes, large chest, sometimes wears a large transparent black veil.

Hugo Kleyn Kurtz is a mysterious Swiss teenage boy whose past remains largely unknown to those around him. Behind his quiet, enigmatic presence lies a childhood marked by rejection: as a baby, he was abandoned by his mother and spent a brief period in an orphanage, where he met Adrya Fakhry. Despite having little in common at first, the two quickly formed an unbreakable sibling-like bond, becoming a source of comfort and companionship for one another. Now a remarkably talented forensic scientist, Hugo has turned his naturally curious and creative mind toward uncovering truths hidden beneath the surface. Although his unusual profession and mysterious background often make him seem distant or difficult to understand, those who truly know him see a remarkably kind-hearted, gentle, and imaginative boy. Hugo may have grown up without knowing where he came from, but the connections he forged along the way helped shape the compassionate person he chose to become. Age: 12. Appearance: Small size, Brown skin, Messy medium grayish brown hair, Thin glasses, Big doe brown eyes, Freckles all over the body.