Brother’s Gone Now, So Give It Up Sister-in-Law

Synopsis

♦Demo Version: First 24 pages (from beginning through end of first R18 scene) +α

♦Work Tags

Underworld executive brother-in-law with yandere tendencies × widow heroine

Daytime drama-style dark and twisted yandere story

Intense devotion, extreme obsession, creampie, moaning hearts, consecutive climaxes, forced situations, drugs, breaking her in, abduction and confinement, verbal degradation, strong domination

♦Synopsis

The protagonist became close with her same-age classmate, and their relationship continued for years. Upon graduating university, she married a man named Kuro Masashiro. Their life together was smooth sailing—she believed this happiness would last forever.

However, seven years into their marriage, she received news of her husband’s sudden death. Drowning in grief, there came a visitor to her home: Satoshi, her husband’s younger brother. Since her late husband had spoken of cutting ties with his family due to certain circumstances, she was surprised by his visit. Yet she and Satoshi had played together many times in the past alongside her husband, and they’d gotten along well. He was friendly and good at depending on others, so she had no qualms inviting him inside.

“Brother told me this address,” he said.

Upon hearing this, she was actually pleased—so despite claiming to have cut ties, the brothers had secretly maintained contact. But that was her grave mistake.

The moment he’d been waiting for had finally arrived. The brother-in-law devours her greedily, unleashing his passion. Unaware she was desired as a woman, unable to process what was happening, she’s stripped of everything by him.

—Yet this was merely the beginning of her world’s collapse.

She fled, moved away for a transfer, only to encounter Satoshi at a client meeting. After that, his figure appears everywhere she goes. Caught in a spiral of paranoia from one impossible situation after another, she decides to confront the brother-in-law and settle things once and for all.

But as expected, there he is waiting in ambush—yet something about him doesn’t seem entirely human anymore.

Dragged by force to his home, what awaits the protagonist is a time both cruel and sweet and terrifying. She’s taught the lesson of his obsessive, almost deranged love and the inescapability of it all. Her body begins to erode even as she insists this relationship is wrong.

Yet even this was merely a prelude to his plan to “obtain everything.”

Once she listens to his poisonous words—so sincere, so earnest—she reaches a point of no return. Even the happy past she shared with her husband begins to be rewritten.

“You see, it’s only my fault. So don’t burden yourself…”