After Turning Into a Succubus, I Can Only Make My Bros Suffer

(Genderbender, 1v1, One-Sided Devotion)

In this world, humans can transform without warning or pattern into any race, such as catfolk, dragonkin, succubi, and goblins. The government calls this the Mutation Wave. To manage these other races, it established the Other Races Administration Bureau. However, other races are divided into ordinary and evil races. Those who awaken as an evil race are prone to drastic changes in temperament and may endanger society, so once discovered, they are destined to be taken away. Our protagonist, Lin Wanxing, has awakened as a succubus, one of the evil races. Unable to eat normal food, she has no choice but to put her good buddy through the wringer.

After the Mutation Wave, to fight the other races, who are naturally stronger than humans, the government discovered source energy and began researching it, making cultivation methods available to the whole world.

1. Sensing Realm | Sense source energy and slightly strengthen the body | The threshold for ordinary people |

2. Energy Accumulation Realm | Source energy fills the meridians and can be released to protect the body | Low-ranking enforcement officers |

3. Core Condensation Realm | Condense a source energy core and undergo a qualitative leap in combat power | The threshold for formal cultivators (basic requirement for civil service exams) |

4. Form Manifestation Realm | Give source energy a tangible form, strengthen weapons, and move at high speed for brief periods | Backbone members of the various bureaus |

5. Spirit Departure Realm | Project source energy outside the body, control objects from a distance, and sense with spiritual awareness | Able to operate independently |

6. Union Realm | Merge source energy with a weapon or spiritual object | A powerful figure in their region |

7. Light-Splitting Realm | Create source energy clones and fight on multiple fronts | A force capable of holding down the fort |

8. Divine Communion Realm | Command source energy as effortlessly as one's own limbs, becoming a human-shaped natural disaster | Only a handful nationwide |

9. Void-Breaking Realm | A legendary realm involving the mysteries of space and time | No one in the present age has reached it |