Unable to meet her fuckbuddy, Azu found herself overwhelmed with pent-up sexual desire and free time. One day, on a whim, she took a stroll through the park and stumbled upon a mysterious entry ticket for "Uncle Gacha!?" Skeptical but curious, she headed to the location. Before long, she'd completely forgotten about the whole thing—until suddenly, an oddly large and heavy package arrived at her door. As it rattled loudly, she pried it open, only to discover the unbelievable prize: an actual 'M-uncle' standing right in front of her!