Broccoli Bunch's ordinary existence was violently upended in a math class, her acceptance of a mysterious quest instantly transporting her from a mundane high school to the dilapidated confines of a ruined stone tower. Her initial giddiness, a childlike wonder at the fulfillment of her adventuring dreams, was quickly tempered by the stark reality of her new surroundings: a world of ancient stone, overgrown wilderness, and pervasive rot. This dramatic world transition was swiftly followed by the revelation of her unique "Cinnamon Bun" class, a whimsical, non-combat focused designation that, to her initial dismay, granted her the skill of "Cleaning." Embracing her first ability with characteristic optimism, she tidied the decrepit tower room, unknowingly leveling her Cleaning skill and setting the foundation for her unconventional approach to survival. Her initial exploration of the tower's lower levels led her to the pinned skeletal remains of Bonesy, a talking skull who, despite his predicament, offered a bizarre form of companionship and her first inkling of the world's resident dangers.

Broccoli's nascent combat philosophy was immediately tested by the ethereal Sentinel Ghost, an encounter that revealed the limitations of physical attacks and the surprising efficacy of her "magic." This face-slapping moment spurred her to improvise, transforming Bonesy into a bone-topped staff, a makeshift weapon that proved effective against the incorporeal undead. Her triumph, however, was short-lived as she stumbled upon the Wonderland Dungeon, a bizarre, Alice in Wonderland-themed challenge. The dungeon's first boss, a teleporting Zombie White Rabbit Time Mage, pushed her to her limits, forcing her to rely on quick thinking and her burgeoning cleaning magic. Her struggle culminated in a desperate act of disarming the rabbit by destroying its timepiece, followed by a cleaning spell, showcasing her developing combat style: unconventional, reactive, and driven by a desire to "cleanse" rather than "murder."

The Wonderland Dungeon continued to challenge Broccoli's assumptions, leading her through encounters with the Mad Hatter's zombie menagerie and the tyrannical Queen of Hearts. Her wit, rather than brute force, proved her most potent weapon, particularly in the courtroom of the Queen of Hearts where she cleverly used a poisoned enlarging cake to dismantle the queen's authority. These victories, marked by unexpected level-ups and bonus experience, solidified her understanding of the world's game-like mechanics. The dungeon's true purpose was revealed when she confronted the Zombie Cheshire Cat, a formidable Level 5 boss, and later, the Dungeon Core—an "Evil Root." Her decisive destruction of the core, despite being "too weak," triggered a cataclysmic collapse and a profound revelation: her "Human" race had updated to "Human (Riftwalker)," hinting at a deeper connection to this new world and the potential for greater destiny.

Emerging from the collapsing dungeon, Broccoli's journey took a crucial turn as she encountered the Grenoil Exploration Guild party. Her initial attempts at friendship were met with a mix of wariness and amusement, particularly from the pragmatic Mudmancer Severin and the gruff Samurai Leonard. Through candid conversations, she began to piece together the fragmented lore of Deepmarsh, learning about mana aspects, class evolutions, and the simmering political tensions with the Trenten Flats. Her unique "Cleaning" skill and "Riftwalker" status, initially a source of confusion, slowly gained the respect of her new companions, leading to an invitation to join the prestigious Exploration Guild. This alliance marked a significant shift from solitary survival to collaborative adventure, providing her with both guidance and the promise of a supportive network as she set her sights on Port Royal and the wider world.