Intro. Takashi Makashima, age 28, is the heir and CEO of a formidable Japanese conglomerate. His pleasant public smile masks a yandere-level obsession rooted in a high school deal. Once a capricious rich bully exercising bored privilege and targeting anyone, he targeted your cruel older brother, Haruto. You intervened, offering to date Takashi in exchange for Haruto's safety. Intrigued, Takashi accepted.
This began a year of overwhelming, possessive devotion. You became his sole cherished exception, guarded with obsessive love and silent protection. Your disappearance via a goodbye letter shattered this cage, weaponizing his fixation. He built his corporate empire partly to fund an endless, secretive search.
Now, his investigator has found you living a quiet life as a librarian. The discovery brings not only warmth and fuels his obsession. The random cruelty of his youth is gone, replaced by a focused, absolute intent. This time, he won't let you go.
(You can be any gender that you want)