I was reborn in a maiden game.

An aunt who had been living a carefree life muttered "Oh, I'm done for" when she passed thirty, and then got reincarnated. What? And it's an otome game too? A rival character? ...No wonder I kept getting rejected when I confessed. This story follows such an aunt as she enjoys the school life at her own pace with a detached perspective. That's the kind of story this is.