TV-Series
Description
Hayato stands as a central figure among the Idaten, deities formed from human prayers to counter demonic threats. Created roughly 80 years ago by Rin, the last surviving original Idaten from the ancient demon war, he manifests as a young boy sporting medium-length blond hair and typically clad in a light brown jacket. Despite his youthful form, his core drive is an intense, singular focus on achieving greater personal strength, characterized by a "brainless" dedication. This pursuit sets him apart from Idaten like Rin, who drew power from duty, or Prontea, who gained strength through adversity. His genuine quest positions him with the potential to become the strongest Idaten.

His personality merges combat-oriented ruthlessness with casual moments of relaxation. He shows no mercy to enemies and staunchly refuses weapons, insisting on hand-to-hand combat to prove his strength—demonstrated when rejecting a sword offered by fellow Idaten Paula during a clash with the demon Cory. While often abrasive and impulsive, notably taunting Rin about her age (inviting frequent physical retaliation), he regularly interacts with peers like Paula and Ysley, engaging in playful activities or resting. He views human conflicts, such as wars, with detached nonchalance unless they involve demonic threats, reflecting the Idaten mandate to protect humanity solely from extinction by demons, not internal strife.

As an Idaten, Hayato possesses innate physiological traits: inorganic composition derived from thought, immortality (Types 1 and 2), low-mid level regeneration, self-sustenance (requiring no food, breath, or sleep), and immunity to conventional human vulnerabilities like poison, fire, or foreign substances. His specific abilities encompass superhuman physical characteristics, martial arts mastery, enhanced senses (spotting Paula from 15 km away), extrasensory perception for detecting demons, shockwave generation via supersonic strikes, acrobatics, and limited subjective reality enabling bodily evolution through thought. Unique combat techniques involve density manipulation—shifting mass to amplify attack weight or enhance speed—and surface scaling. He also exhibits abstract existence (Type 2), resisting conventional physics and elemental manipulations.

His power development progressed through three key phases. Initially ("Pre-Prontea Training"), he demonstrated city block-level attack potency, hypersonic+ speed, Class M lifting strength, and multi-city block durability, utilizing speed and mass-shifting for greater impact. Following focused training under Prontea ("Post-Prontea Training"), all attributes significantly improved, with durability reaching planetary levels by enduring hits from Rin, who matched planet-destroying threats like the demon Nickel. After a nine-year timeskip, his abilities peaked further, achieving small town to planetary attack potency and town to planetary durability, maintaining infinite stamina and standard melee range supplemented by shockwaves.

Weaknesses include tactical impulsiveness, such as rushing into battles alone and refusing assistance. His Idaten physiology also links vitality directly to clothing and hair; damage to these aspects inflicts equivalent bodily harm, creating susceptibility to attrition-based tactics targeting them.