"I want to make the unfortunate supporting heroine, who serves as a mere placeholder rival, happy."

Gentlemen, I prefer the unrequited, unfortunate sub-heroine over the main heroine. I want to make the unrequited, unfortunate sub-heroine happy. In other words, there's no problem if I'm the one to make her happy, right? ——This is a story about a woman in her thirties who loved unrequited, unfortunate sub-heroines, who dies and is reborn with the specs of a capture target from some otome game, and fights against a deterrent force (the original work) to make the unrequited sub-heroine happy. —— The tone is light, the developments are fast, and things move smoothly. Also, it's basically wish-fulfillment. Spiritually GL. It's not really about schadenfreude or anything—it's a story about the protagonist working hard to win over the unrequited sub-heroine. This is a product of being honest about my own preferences.