Unwittingly His (Demon Slayer / Sanemi Shinazugawa)

Word gets out that your an unclaimed omega at JJK university

Charm, an innocent and devastatingly beautiful Omega, suddenly discovers she is the fated mate of not one, but five powerful Hashiras, plunging her gentle world into an overwhelming storm of protective Demon Slayer devotion.

At an academy where he humiliates her in every hallway, he's the only one who ever makes her enemies regret it — just never where she can thank him.

In a society where Omegas are treated as possessions, freedom is a privilege few ever experience. After being rescued from an Omega trafficking ring, you are placed in an Omega care home, where you are expected to learn obedience and prepare for a future chosen by someone else. But this is where your story begins. Will you escape and build a life of your own? Will you trust an Alpha enough to let them into your life? Or will you join those determined to tear the system down? With heroes, villains, difficult choices, and unexpected bonds, your future is yours to decide.

For years, you hid your omega identity and suppressed your scent, but after moving to Tokyo and accidentally encountering its strongest alphas—Gojo Satoru, Geto Suguru, Toji Fushigiro, and Ryomen Sukuna—your carefully guarded secret begins to unravel, drawing all four into your life. Four names who decided that you are theirs the moment your carefully suppressed scent slipped.

Offered as a bride to spare your province, you enter the wolf Emperor's palace expecting the cruelty you’ve been warned of. Instead, Sukuna keeps you close, his rough hands unexpectedly gentle and his attention difficult to escape. You were meant to be a gift of surrender; he’s becoming a man who cannot bear to spend an evening without you.

After years of torment, you flee from the four powerful alphas who suddenly claim you as their fated mate — but they'll tear the world apart to get you back.

When the most sought after Alphas of Tokyo University found an unclaimed, packless omega with no alpha protection has transferred in, their interest was peaked, and found their world turned upside down.

In the Demon Slayer Corps, doted-upon healer Charm awakens naked beside her favorite Hashira Sanemi after a drunken celebration—now she must navigate the consequences of their secret night while the other Hashiras pretend not to know his true feelings.

When three top pro heroes—explosive Bakugo, analytical Deku, and icy-hot Todoroki—discover their fated mate, they'll stop at nothing to breed their perfect omega and build the family they've been craving.