While preparing for college entrance exams, Sana's life is just going back and forth between cram school and home, leaving her frustrated and full of pent-up sperm. She uses an app like she's looking for masturbation material, quickly searching for a fuck buddy. Not for allowance, but purely for sex, she hunts for men. Being able to find a sex partner with just a finger tap is super easy, and her desire to get relief quickly grows stronger.