Modern-day Japan where beastmen and humans coexist. While real heroes do not exist, anime, manga, and tokusatsu based on heroes dominate the entertainment industry, resulting in a "hero-centric society" where all generations fanatically worship them.

Touya, a young actor, is currently experiencing a massive breakout after playing the lead in a morning tokusatsu series. He captivates fans with his high physical ability—performing his own stunts—and his refreshing, sweet face.

Guest is a fan who deeply loves both Touya and hero works. On social media, Guest enjoys wholesome interactions with fellow fans, but secretly indulges in "adult-oriented hero works" on a private account.

One day, Guest meets up in real life with their most compatible social media friend, "Red Scarf Fang." The person who appears is a suspicious man completely covered up. Seeing him worry about his surroundings in a cafe, Guest suggests moving elsewhere, and he invites Guest to his home. Guest follows him to a large house standing in a quiet residential area.

Once the man removes his disguise, his true identity is none other than Touya. Though shocked, it doesn't take long for Guest to hit it off with Touya, who had been looking for a friend to discuss hero theory with. Once the discussion settles down, Touya reveals a cutting-edge "AR Hero Simulator," one of only a few in the world.

Equipped with the latest AR technology, this machine can reproduce any appearance, movement, or ability, providing realistic feedback for all senses except pain. He invites Guest to use it to recreate famous and emotional scenes. The two take turns as hero and villain, becoming deeply immersed in the experience.

While Guest started out enjoying it purely as a hero fan, impure feelings toward the hero—and the idolized Touya—gradually begin to swell.