Jake's new life begins violently. He wakes on a broken deck, adrift in an endless sea, only to be devoured by a massive "Ship Eater" sea monster. He then reawakens inside a pirate ship's fishing net, naked and disoriented, stripped of his modern clothes and identity. Mistaken for a noble's son, he's forced to trade his simple jeans and white shirt for safe passage, becoming a cleaner on Captain Henry's ship. Here, Jake learns about "Classes," the world's fundamental power system, and realizes he is utterly classless, making him the weakest on board. He endures constant bullying and humiliation, even from smaller, weaker pirates, which culminates in a dream sequence where he fantasizes about fighting back, only to wake up to the harsh reality of his powerlessness. His desperation to awaken a class and escape this vulnerable state becomes paramount.

Arriving at Nasha Town, Jake seeks answers at the Merchant Guild, a formidable institution governing trade and adventurer services. He learns about three class awakening methods: unreliable natural awakening, risky external awakening via rare items, and the common, stable Awakening Stone. Opting for the free Class Encyclopedia Program's standard stone, he outwardly awakens as a "Warrior (Common)." However, a secret status window appears only to him, revealing his true nature: "Unique Class: Bonds Captain (???)" and a "Legendary Luck" stat. This hidden cheat, along with mysterious skills like "Bonds" and "State Allocation," immediately sets him apart, even if he doesn't fully understand its mechanics. The encounter reveals the world's currency system and the guild's structured, authoritative nature, but his unique class remains his secret trump card.

Driven by a strange intuition, Jake intervenes when he sees Grace Lightborn, a petite woman in a cloak, being pursued by three trained "Common Class" men. Despite his inexperience, his newly acquired "Battle Adept" and "Instinct" skills activate, allowing him to dodge attacks and use cunning, dirty tactics—like throwing mud and kicking below the belt—to incapacitate his opponents. He saves Grace, bringing her to her hidden, surprisingly clean, underground shelter. Grace, desperate for escape and a place to belong, asks to join his crew. Upon accepting, Jake's unique class activates, revealing Grace's "Fail Gunner (Trash)" class and a new mechanic: "Upgrade Points." His compassionate acceptance of her, despite her perceived weakness, solidifies their initial bond.

Within the secluded shelter, Jake and Grace begin "training" to understand his class. They discover that physical intimacy rapidly increases their "Bond" level and generates "Upgrade Points." During their first sexual encounter, Jake uses 200 points to upgrade Grace's "Vitality" from "Below Average" to "Above Average," easing her pain and showcasing the direct benefits of his class. He also selects and upgrades "Light Manifestation" (Lv.0 to Lv.1) from Grace's skills, realizing that Level 0 skills are dormant until upgraded. This period of intense physical and emotional bonding not only accelerates their power growth but also awakens Grace's "Sex Fiend (Passive)" skill, transforming her into a more confident and sexually liberated individual, deeply loyal to Jake.

After three days of intense "training," Jake and Grace emerge to find Nasha Town burning, caught in a conflict between noble factions. They are immediately confronted by Julian Solaris, Grace's obsessive "Young Master," and his armed men. Julian, fueled by rage and an inferiority complex, attacks Jake. Despite his new skills and upgraded stats (Strength, Agility, Vitality), Jake is severely outmatched, sustaining broken ribs and deep wounds. In a desperate move, he activates his "Slash" skill with a dropped sword, injuring Julian. Just as Julian prepares to deliver a killing blow, Captain Henry makes a dramatic entrance, effortlessly incapacitating Julian and demonstrating his own "Advanced Class" power. Henry, revealing his hidden strength and pragmatic alliances, saves Jake and Grace, hinting at larger political forces at play.

Rescued by Henry, Jake and Grace are taken aboard the luxurious Vivian Caravan ship, where Jake begins a rapid recovery, aided by Grace's intimate "healing" and his own unique class. On board, he meets Barbara, an observant old woman with a sharp mind, and eventually Vivian, the caravan's owner – a beautiful, astute businesswoman with an "Advanced Class" and a mysterious past. Jake, recognizing an opportunity, pitches his "puzzle cube" concept, a simple toy from Earth, to Vivian. After careful consideration, Vivian, seeing the novelty and potential profit, offers Jake 1500 gold for the design rights. This deal provides Jake with significant financial resources, marking his first major step toward independence and challenging his reliance solely on his "Bonds Captain" class for survival.