Kai and Killua embark on their first mission as Combat Hunters, which involves hunting down a notorious gang leader named Razor, who is hiding in a remote island called Greed Island.
They learn that Razor is a powerful and ruthless criminal, who has escaped from prison and taken over the island. He is also a skilled and experienced nen user, who specializes in emission and manipulation. He is wanted by the Hunter Association and the authorities for his crimes and his involvement in the game.
They learn that Greed Island is a mysterious and dangerous place, where a special game is being played by a select group of Hunters and players. They learn that the game is based on a set of cards, which have various effects and abilities. They learn that the game has rules and objectives, which have to be followed and completed by the players.
They learn that the game has rewards and risks, which can be gained or lost by the players. They learn that the game is controlled by a group of nen users, who are known as the Game Masters. They learn that the game is connected to a larger plot, which involves a legendary Hunter named Ging Freecss.
They also learn that the game is based on a set of 100 cards, each with a unique ability or item, and that the goal is to collect all the cards and win the game. They learn that the cards are divided into two types: spell cards and designated slot cards.
The spell cards are cards that can be used at any time and have various effects, such as teleportation, transformation, or healing. While designated slot cards are cards that can only be used when placed in a specific slot in the player's binder and have various items, such as weapons, tools, or creatures.
The cards can be obtained by various means, such as finding them in the island, buying them from shops, winning them from events, or stealing them from other players.
They decide to enter the game and hunt down Razor, who is rumored to be one of the creators of the game and one of its strongest players. They have heard that he resides in a hidden island inside the game, where he oversees the rules and events of the game world.
They will use their Combat Hunter skills and abilities to track him down and capture him. They will use their nen abilities and martial arts skills to fight him and his minions.
They know that Razor is a master of Emission, one of the six types of nen, and that he can create powerful nen beasts that can attack from a distance. They also know that he is a former convict who was pardoned by Ging Freecss, the father of Gon, one of the main characters.
They use their wits and strategies to overcome his traps and challenges, such as dodging his explosive dodgeballs, solving his riddles, and finding his hidden base. They hope to confront him face to face and learn more about him and the secrets of the game.
They arrive at Greed Island and receive a starter pack of cards and a guidebook that explains the rules and mechanics of the game. They learn that the starter pack contains three spell cards and three designated slot cards, which they can use right away. The guidebook contains detailed information and instructions about the game, such as the card list, the card effects, the card locations, the game events, the game quests, the game rewards, and the game tips.
They have to use a special ring to access their cards and their binder, where they can store and manage their cards. The ring is a special device that allows them to scan, view, and use their cards. The binder is a special interface that allows them to organize, sort, and trade their cards. They have to use a special word to activate their cards and use their effects or items.
They learn that the word is "Book", which they have to say out loud while wearing their ring. This word will open their binder and show their cards. They have to say the name of the card they want to use while pointing at it with their finger. This will activate the card and use its effect or item.
They learn that they have to use a special phrase to leave the game and return to the real world. The phrase is "I'm out", which they have to say out loud while wearing their ring. This phrase will transport them back to where they entered the game from. They also learn that they have to say "I'm in" to re-enter the game from where they left off.
They have to be careful and cautious, as the game is dangerous and deadly, and that they can die in the game and in reality. The game is not a virtual reality or a simulation, but a real world with real consequences. The game has many hazards and threats, such as hostile players, deadly beasts, and lethal traps.
They learn that if they die in the game, they will also die in reality, as their bodies will be destroyed by a powerful nen bomb. They also learn that if they lose their ring or their cards, they will be stuck in the game forever, as they will have no way of leaving or using the game's features.
They meet Biscuit Krueger, an old lady who is actually a Triple-Star Hunter and a nen master, who offers to join them and help them in their mission. They learn that she is a veteran player of the game, who knows a lot about the game and its secrets. She knows the locations and functions of the cards, the events and quests of the game, the players and enemies of the game, and the history and purpose of the game.
She is a skilled teacher of nen, who can help them improve their nen abilities and skills. She can teach them the advanced aspects and techniques of nen, such as the four principles, the five conditions, and the eight applications.
She is a powerful fighter of nen, who can help them fight their enemies and opponents. She can use her own nen ability, which allows her to transform into a young and beautiful woman with enhanced strength and speed. She can also use various martial arts skills, such as karate, judo, and tai chi.
She is a cunning strategist of nen, who can help them plan their moves and tactics. She can analyze their situation and environment, devise their strategy and action, and execute their plan and outcome. She can also adapt to any changes or surprises that may occur during their mission.
She is a greedy collector of nen, who wants to collect all the cards and win the game. She wants to obtain all the rare and valuable cards, such as the SS-ranked cards, the event cards, and the restricted cards. She also wants to win the game's prize, which is a special card that grants any wish.
Biscuit: "Hello there, boys. I'm Biscuit Krueger, but you can call me Bisky. I'm a Triple-Star Hunter and a nen master. I've been playing this game for a long time, and I know everything there is to know about it. I'm also looking for Razor, who is one of the Game Masters and one of my old acquaintances. I heard that you're also looking for him, so I thought we could work together."
Kai: "Hi, Bisky. I'm Kai Zoldyck, and this is my brother Killua Zoldyck. We're Combat Hunters and nen users. We've just entered this game for our first mission, and we don't know much about it. We're also looking for Razor, who is our target and our enemy. We're glad to meet you, and we appreciate your offer."
Killua: "Hello, Bisky. I'm Killua Zoldyck, We're glad to meet you, but we're also curious about you."
Biscuit: "Curious? About what?"
Killua: "About why you want to join us and help us in our mission. What's your motive? What's your goal? What's your benefit?"
Biscuit: "Oh, that's simple. I want to join you because I think you're interesting and talented boys, who have a lot of potential as Hunters and nen users. I want to help you because I think you need my guidance and assistance in this game, which is full of dangers and mysteries. And I want to benefit from you because I think you can help me collect all the cards and win the game."
Kai: "Collect all the cards? Win the game? Is that your goal?"
Biscuit: "Yes, that's my goal. And it should be yours too."
Kai: "Why?"
Biscuit: "Because that's the whole point of this game. To collect all the cards and win the game."
Kai: "But we're not here to play this game. We're here to hunt down Razor."
Biscuit: "And you can do both at the same time. In fact, you have to do both at the same time."
Kai: "How?"
Biscuit: "By using the cards as your tools and weapons in your hunt for Razor. By using the game as your training ground and battlefield in your fight against Razor. By using Razor as your obstacle and challenge in your quest for the cards."
Kai: "I see..."
Biscuit: "Trust me boys, this game is more than just a game. It's a test of your skills and abilities as Hunters and nen users. It's a chance to improve yourselves and your powers as Hunters and nen users. It's a opportunity to prove yourselves and your worth as Hunters and nen users. And it's a reward for your efforts and achievements as Hunters and nen users."
Kai: "I see..."
Biscuit: "So, what do you say? Are you in or out?"
Kai and Killua: "We're in."
Biscuit: "Good. Then let's get started. Follow me, boys. I'll show you the ropes of this game."