My Fiancé Poured Water on My College Entrance Examination Information, so I Broke Off the Engagement on the Spot

The Heroine Is Capable, but Also Knows How to Act in a Low-Key Period.

I want to read a book similar to "Smiling to the Sophora japonica and Asking About My Past". You can have a cheat, but don't rely on it to advance the storyline, and don't use the stuff inside to explore the black market every day.