A Beta who once failed to protect an Omega finds himself drawn to another Omega in need. Wails of the Bound: Beta is a spin-off of the Omegaverse story Wails of the Bound, continuing its exploration of a society where secondary genders determine social hierarchy and personal freedom.

The story takes place in a modern Japanese workplace, centered on a major advertising agency where office politics intersect dangerously with biological destiny. Omegas face severe discrimination and exploitation, often coerced into sexual favors for career advancement, while Betas occupy an uncertain middle ground, neither privileged like Alphas nor as oppressed as Omegas.

Sasabe is a new university graduate assigned to the sales department. Cheeky, ambitious, and outwardly defiant, he carries deep trauma: betrayed by his Beta best friend who participated in a violent gang rape, and oppressed by his own parents, he has learned to trust no one. Sasabe is an Omega who tries desperately to hide his status, relying solely on his talent to climb the corporate ladder. However, his suppressants do not work effectively, and he possesses a predisposition that involuntarily stirs sexual desire in those around him.

Utou is Sasabe’s superior, a Beta manager who takes good care of his subordinates. Despite Sasabe’s insolent attitude, Utou feels compelled to watch over him and soon discovers his secret. Utou has his own wounds: he was once in love with his own boss, an Omega who ultimately bonded with Alpha partners, leaving Utou feeling useless as a protector. That past failure makes him hesitate to get close to Sasabe even as he begins helping the younger man relieve his pain during heat cycles. Utou struggles with feelings of inferiority toward Alphas and indecisiveness about whether a Beta and an Omega can truly find happiness together.

As Utou and Sasabe navigate their fragile, unspoken relationship, a darker force operates behind the scenes. The company’s higher-ups, particularly a director named Hio, have dirty plans for Sasabe, exploiting Omegas in a corrupt system that encourages sexual assault in exchange for professional advancement. Sasabe endures continued sexual harassment and assault in this toxic environment.

The narrative follows several major arcs. First is the workplace exploitation arc, where Sasabe faces pressure to perform sexual favors while Utou tries to protect him from the shadows. Second is the trauma and trust arc, as Sasabe’s hatred for Betas conflicts with his growing reliance on Utou, who eventually initiates a physical relationship to help Sasabe through his heats despite Sasabe’s initial refusal. Third is the miscommunication and rejection arc: Utou sends mixed signals and ends their arrangement, leaving Sasabe confused and hurt. When Sasabe confesses his feelings, Utou rejects him due to his own fears. Fourth is the desperate bond arc: driven by severe heats, the threat of being replaced at work, and ongoing assaults, Sasabe makes a rushed and impulsive decision to bond with a character named Shitori, hoping to free himself from the agonizing cycle of his biology and exploitation.

Despite the bleak premise, the story ultimately resolves with Sasabe willing to fight for a relationship with Utou even at great personal risk. They achieve their happy ending together, with the epilogue showing them raising children, suggesting that a Beta-Omega bond, while socially precarious, can succeed through mutual commitment. The work contains explicit sexual content and deals extensively with sexual assault, dubious consent, and the lifelong trauma of systemic oppression.