Random Crossover Ideas

RWBY X Swallowed Star

One day, the RR virus of unknown origin appears on earth and disaster strikes the world. The infected animals mutate into terrifying monsters and attack on a large scale. When humans faced destruction, they built walls and founded cities as humanity's last strongholds. The trials that mankind experiences during this period are called the "Nirvana Period". In such an extreme living environment, human physical strength also gradually evolved and developed, martial arts sprang up, and human physical strength was qualitatively increasing compared to before. And the best of them is called "Warriors".
(Remnant is A Couple of Small Islands Inside the Bermuda Triangle as this is why they don't Realize that there is a bigger and wider world then the 4 kingdoms. The Outside of Remnants are way advanced in technology.)

Jaune Grew up Hearing About Huntsmen and about how Heroic they are, But Jaune Realize the True Nature of The Huntsmen When He join a Academy The Are Greedy and Fame Seeking Leaches Instead of True Huntsmen. So Jaune Quits Beacon Academy and with his Family Leaves Remnant And Enter the Vast Outer Lands There Jaune Joins the "Warriors"

Warriors

The first Warriors appeared during the Great Nirvana Era, they were human beings who developed an immunity to the RR virus, unlike ordinary humans, when they were infected with the virus, they did not die, but instead were genetically modified by the infection of the RR Virus, causing a body enhancement of the Warriors and an awakening of the genetic energy within the Warriors.

Warrior Cultivation focuses on Genetic Energy, a form of energy generated by the enhanced body cells used in martial arts to make martial fighters both strong and resilient.

Warriors are more powerful, faster and more resistant than ordinary human beings. They have better physical strength, defensive and mentality capability and even greater mental capacity for all the skills of warriors which comes from the Genetic Energy.

When they get to a certain point, warriors, they can absorb the energy of the universe, integrating that energy into their cells

The energy from the biological cells is then transmitted to the whole human body, causing an increase in physical-muscular strength in the warrior.

Energy Form

Martial cultivation is based on two types of energy:

Genetic Energy

Spiritual Energy

Warriors focus on training their Genetic Energy and physical strength.

Whereas Spirit Masters focus on Spiritual Energy and Will.

There are obviously exceptions to this general scheme. This scheme also only holds true in the earlier Cultivation Stages. Once a Warrior becomes an Immortal they have an extremely long lifespan meaning they can invest time into training their Will in order to better resist Spiritual Attacks.

Spirit Masters

Spirit Master is a special type of warrior, who is able to control the Spirit Energy, this type of warrior is stronger than the common warrior, who focuses on genetic energy, but only a few warriors can become Spirit Masters, because spirituality is an innate gift, only warriors with a highly evolved spiritual ability are able to become a Spirit Master.

Spirit Masters are 2 tiers stronger than a Warrior at the Apprentice Level. So an Apprentice Level 5 Spirit Master is comparable to an Apprentice Level 7 Warrior. This advantage is only really prevalent at the Apprentice Stage.

Due to a Spirit Master having to train both their Genetic and Spiritual Energy, they are generally superior to Warriors of the same rank, as Warriors can ascend Ranks much quicker. Spirit Masters take longer to ascend but can master a lot more skills at the same level.