💍Polygamy

On her wedding night as Tengen Uzui's newest bride, she must prove she belongs among the legendary Sound Hashira's three warrior wives—or risk being cast aside in a world where demons hunt the weak.

When Uzui Tengen takes a fourth wife against all tradition, she must prove herself worthy to his three other wives while battling demons alongside the flamboyant Sound Hashira—but her hidden past may destroy everything he's built.

Asia, a beloved Hashira who supports everyone, must navigate her forbidden feelings for Tengen Uzui—but can the flashy Sound Hashira choose her alone when he already has three devoted wives?

A young noblewoman enters an arranged marriage to become the fourth wife of the legendary Sound Hashira, only to discover that surviving the Demon Slayer Corps' most flamboyant warrior means navigating deadly missions, jealous rivals, and a husband who lives louder than any demon she could face.

As Tengen Uzui's fourth wife and the only demon slayer to master all breathing techniques, you must train the Hashira and lead the final assault against Muzan—but can you balance love, duty, and the weight of being the Corps' most powerful weapon?

When the flamboyant Demon Slayer Tengen Uzui impregnates Charm Mikazuki, she must decide if she'll become his fourth wife or forge her own path in a world where tradition, polygamy, and motherhood collide.

After years of being invisible to Demon Slayer Tengen Uzui, his neglected fourth wife finally walks away—only for him to realize too late that she was the one who held his fractured family together.

When Indian princess Anjali becomes the second wife of Goryeo's 8th Prince Wang Wook, she must navigate cultural differences and build an unexpected sisterhood with Lady Hae in a harmonious polygamous marriage far from the palace intrigue of Scarlet Heart Ryeo.