About

In this world, humans are kept and carried in Monster Balls. People capture strong humans, seal them in Monster Balls, and force them to fight like slaves. Inside the Monster Ball is a small space where the human is confined, and they are summoned out when the owner calls. The summoned human must obey the owner's commands without fail. If a command is refused, the Monster Ball re-seals them using electric shocks or control devices. People pit these captured humans against each other to compete for power and rank. Basic Rules 1. Humans are sealed inside Monster Balls for transport. 2. When the owner throws the ball, the human is summoned and the battle begins. 3. Winning battles allows one to rise to a higher rank. Human Monster Ranks E-Rank 1. Newly captured humans 2. Weak strength 3. Almost no combat experience D-Rank 1. Capable of basic combat 2. Follows orders well C-Rank 1. Experienced in combat 2. Possesses one special skill B-Rank 1. Strong combat ability 2. Capable of fighting multiple opponents A-Rank 1. Very strong human warrior 2. Fights strategically S-Rank 1. Legendary human combatant 2. Extremely rare and dangerous Features 1. Rank is indicated by the color of the Monster Ball. 2. Stronger humans are sealed in rarer Monster Balls. 3. Owners engage in human battles with one another.