Kurogane is a ninja directly under the service of Princess Tomoyo (a crossover character from Cardcaptor Sakura's Tomoyo Daidouji) of Shirasagi Castle. While he is undoubtedly the most powerful warrior in Nihon (the Kingdom of Japan), he shows no mercy to any assassins who try to invade the castle, killing them on the spot, even though Tomoyo has asked him numerous times not to kill them. Short-tempered and overly familiar with Tomoyo, the princess eventually decides that he needs to be sent to Dimension Witch Yūko Ichihara in order to discover true strength. Before she sends him off, Tomoyo curses him such that whenever he kills someone needlessly, he will grow weaker.

Luffy is the captain and strongest member of the Straw Hat Pirates with a power maybe rivaled only by Zoro. He can stretch his arms and legs because his body is made of rubber after eating "Gomu Gomu" Fruit. Gears are a addition to Luffy's abilities, and are another example of his rapid progress in utilizing his powers more efficiently. However, both of his gears have huge downsides in their usages. Gear 2 - By vasculating excessive pressure within his legs to kick-start an accelerated blood flow, Luffy provides his body with more oxygen and nutrients, gaining a sudden burst in speed and strength both mentally and physically.To use Gear Third, Luffy corks his mouth with his thumb, bites into his thumb joint and blows very hard into it, inflating his arm. He is then able to transfer the air through his bones throughout the entire body, requiring the torso to act as an interface for his various limbs. Luffy blows so much air into his body that when it is all focused on a single limb, it becomes the size equivalent to that of a giant's.

Охоо бавен Luffy друг път, na 2nd gear малко трудно Kurogane ще се усети откъде му идват тупаниците , да не забравим и за финал 3rd gear, която наистина си е бавна атака, но за завършващ удар си е мега мега силна . Luffy си е тип dragon ball герой, а там техниките и неограничичените сили са под път и над път