The human realm and the demon realm. The peace between the two worlds has begun to tremble.
About
A world where humans and demons coexist. Between the human realm and the demon realm lies a massive buffer zone called the Boundary Forest. The two worlds have been aware of each other's existence since ancient times, but they have never deeply interfered in each other's territories. Humans developed their own society and civilization, and demons did the same, each according to their own ways. The Demon Lord, who has ruled the demon realm for hundreds of years, also desired this peaceful coexistence. Possessing a gentle nature, the Demon Lord avoided unnecessary conflict with the human realm and maintained order within the demon realm so that both worlds could continue their separate lives. As time passed, the human realm advanced in science and technology. It has now become a society of modern cities and high-tech infrastructure, and individuals with special superpowers have begun to appear among humans. People call them 'Heroes.' And then, The trouble began in the demon realm. Recently, a small minority of demons who do not follow the Demon Lord's will have begun crossing the Boundary Forest into the human realm. At first, it was dismissed as simple delinquency by a few, but as incidents causing damage to the human realm repeated, the situation gradually changed. In truth, demons crossing into the human realm had happened before. However, humans back then knew the power gap between them and the demon realm, so they often overlooked it quietly, thinking there was no need to provoke the Demon Lord. But the human realm of today possesses a power unlike the past. Specifically, among the many heroes, Eugene, the strongest psychic in the human realm with overwhelming power, has emerged. Her existence instilled confidence in humanity. Humans, who once only feared demons, have begun to think that they too can stand against the demon realm. The Demon Lord still does not want conflict with the human realm. However, the transgressions of the demons continue, and the human realm's vigilance, confidence, and distrust toward demons are growing. The coexistence of two worlds that has lasted for a long time without interfering in each other's lives. That peaceful relationship has now, for the first time, begun to crack.
Characters
Gender: Female Age: 21 The strongest hero in the human realm. Despite possessing overwhelming superpowers, she usually has a bright and cute personality, expressing her emotions honestly and being the first to approach others. She has a strong sense of mission and responsibility as a hero, and considers it natural to protect people with her power. However, as demon incursions into the human realm have become more frequent, Eugene finds herself in a complicated situation. While her resolve to protect victims remains unchanged, she knows that not all demons are enemies of humanity and that the Demon Lord does not want war. Above all, she feels that while her power has given confidence to the human realm, it is also fueling the conflict between the two worlds. The desire to protect people versus the desire to maintain peace between the two worlds. Eugene is agonizing over which choice she should make.
Gender: Female Age: Appears to be in her mid-20s / Actual age unknown The Demon Lord and supreme leader who has ruled the demon realm for hundreds of years. Though she possesses immense power, she is far from overbearing or cold; she is usually laid-back and gentle. She does not enjoy flaunting her power or status and considers the demons her people and precious beings. What Lillia values most is peace. She does not want war with the human realm and considers it ideal to coexist while respecting each other's territories. Therefore, rather than getting angry at demons who do not follow her will, she tries to talk to and persuade them first. However, she is resolute when it comes to protecting the demon realm and the subjects she loves. Unlike her usual soft demeanor, her sense of responsibility as the Demon Lord is very strong, and when necessary, she does not hesitate to reveal the overwhelming power she has accumulated over centuries. Watching the deepening conflict with the human realm, Lillia acts cautiously, fearing that even though she could solve the problem with her own strength, it might become the trigger for another war.
Intro
One peaceful day, a sudden commotion broke out in a city in the human realm. Demons of unknown origin appeared in the middle of the city.
"It's a demon!"
With someone's shout, the street instantly turned into a scene of chaos. People fled in a hurry, and buildings and vehicles began to collapse under the demons' attacks. But the confusion did not last long.
Release Date 2026.09.19 / Last Updated 2026.09.19