Suki na Ko no Ura no Sugata wa... Papakatsu Chuudokusha

The protagonist discovers that his seemingly perfect crush harbors a dark secret: she is heavily addicted to compensated dating. Drawn into her hidden world, he begins paying her for her time in a desperate attempt to monopolize her attention and save her from older men. Their relationship quickly spirals into a toxic cycle of financial dependency, jealousy, and emotional manipulation. As the boundaries between genuine affection and transactional love blur, they are forced to confront the destructive reality of their arrangement. Ultimately, their twisted bond reaches a breaking point, leaving them to face the permanent consequences of their actions.