Battera, a multi-billionaire, devoted his fortune to collecting copies of the game Greed Island after spending over half his wealth on available cartridges. His quest originated from a personal tragedy: his younger lover had lain in a coma for 13 years following an accident. She had always refused lavish gifts during their relationship, accepting only a handmade picture frame from him. Battera sought two specific in-game items—"Angel's Breath" to cure any illness and "Witch's Rejuvenation Potion" to restore youth—intending to heal her and reverse his own aging. Starting in 1988, he offered 17 billion jenny per cartridge and pledged an additional 50 billion jenny to anyone completing the game. He suppressed public knowledge of Greed Island's details through his influence. By 1999, he secured 31 cartridges and hired over 100 professional and amateur Hunters as players. None succeeded in finishing the game or returning to reality, prompting him to later enlist Tsezguerra, a Single-Star Jackpot Hunter, to oversee player tryouts. At the September 1999 Southernpiece Auction, Battera engaged in competitive bidding—notably against Milluki Zoldyck—winning one copy for 30.5 billion jenny. From September 7–10, he acquired seven more cartridges at auctions, spending 27.8 billion and 60.2 billion jenny, an expenditure that halved his remaining fortune. He organized tryouts for these new cartridges, assessing candidates including Gon and Killua. Despite their lack of Hunter licenses, he permitted their participation, trusting their potential. After all players entered the game, Battera monitored their progress from his mansion. Months later, his lover died in her sleep, rendering his mission futile. Consumed by grief, he isolated himself and canceled the 50 billion jenny completion reward. When confronted by Tsezguerra about his withdrawal, he revealed his lover's identity and his motives for pursuing the game. Battera honored contractual obligations by paying a 35 billion jenny penalty fee to compensate affected parties, including Gon's group and Tsezguerra, for the nullified agreement. Battera's character demonstrated profound devotion and integrity. He concealed his personal motives for years, publicly attributing his pursuit of Greed Island to "love." His calm demeanor extended to interactions with unconventional candidates like Gon and Killua, whom he treated respectfully. After his loss, his commitment to fairness ensured financial redress for those impacted by his canceled reward.