In a world where all emotion is artificial and everyone is a potential drug addict, nothing has truly changed: excess is ever-present, and very few substances are deemed dangerous enough to be strictly controlled by a hygiene office. This office holds absolute power over addicts, who exist in extreme conditions. The protagonist is Kabu, a small-time peddler and heavy addict. Accustomed to all manner of hallucinogenic trips, he experiences happiness through drug-induced ecstasy, while simultaneously harboring hypocritical hatred for those who created the society that forced him into excess. After an overdose caused by mixing two incompatible drugs, he spends his days seeking stimulants until he meets an enigmatic man who offers him a new illegal substance: Ultra Heaven. From that moment, his incredible journey begins, where dream and reality merge into an undivided world, triggering hysterical or joyful reactions and unrestrained pain. But what is Ultra Heaven, and who is truly behind it? And who is the guru promoting meditation as a powerful means to influence the entire universe surrounding us? With the aid of a special amplifier helmet, Kabu embarks on a trip into the deep, hidden layers of his consciousness, diving into a nightmare he would never have discovered...