Mukuro, in Ken's body, attempts to attack the collapsed Tsuna and make a contract with him using his trident. But before he is able to stab Tsuna, Tsuna grabs it with his new X-Gloves and claims if he doesn't defeat Mukuro, he can never die in peace. Mukuro jumps back and claims that the special bullet did hit you, but the flame is much more fiercer then the one Tsuna had during the fight with Lancia. Reborn says this bullet is different from Dying Will Bullet, it is the Rebuke Bullet. With the new Rebuke Bullet, Tsuna attains the Hyper Dying Will Mode, which shifts his erratic despair into a calm, collected state, which is more different from Tsuna's wild exposure in Dying Will Mode. Reborn claims that in Hyper Dying Will Mode, his internal senses are enhanced and Tsuna's Hyper Intuition is released, while Dying Will Mode only enhances his body. Mukuro claims it makes no difference and attacks with Ken and Chikusa, which Tsuna takes down easily in this new form. But Mukuro claims you can defeat them, but can you defeat your own friends. Just then Gokudera and Bianchi attacks Tsuna with a barrage of kicks and punches, which Tsuna voluntarily takes. Mukuro starts laughing saying your body will become mine. But Reborn says Tsuna is taking the hits to reduce the stress on his friend's body and instinctively he knocked them out and then whispers in their ears apologizing for keeping them waiting.
Mukuro claims the fight isn't finished yet as he gets up in his own body. Mukuro claims that there is one of his six combat skills he hasn't used yet, the fifth path, the path of humans. In Mukuro's opinion, it is the most hideous and disgusting (since he hated the human world the most) and he rather not use it. As he activates it, a dark purple aura surrounds him, giving him a dangerous appearance. Mukuro claims for warriors that fight with auras, the size of their aura is their strength and he attacks Tsuna with his trident stick. Tsuna struggles to hold him back and Mukuro uppercuts him in the stomach, sending him in the air, only for Tsuna to be thrown back, hitting the wall, by his trident stick. Mukuro starts laughing and comments on how weak he is and he is just warming up. Tsuna remarks that he has to be and Mukuro gasps at his new enhanced aura. And Tsuna now gets up with his X-Gloves on fire claiming if that was Mukuro's true power he would've been disappointed. Reborn smiles, realizing that Tsuna finally understands the true purpose of his X-Gloves, since they are made from the same material as the Dying Will Bullet (because they were all born from Leon) so they can light the Dying Will Flame as well. Mukuro then compares Tsuna to a cat who puffs up his fur to seem bigger and that changing his aura is useless.
Tsuna remarks that the Dying Will Flame isn't an aura but Mukuro doesn't believe him and asks him to show him as Mukuro charges at him. Tsuna grabs his stick with his glove and he heats it up, easily bending it and even making Mukuro feel the heat which surprises him that his aura is emitting heat. Reborn responds that the energy density between an aura and the Dying Will Flame is too great and unlike an aura (which can be seen by only special people) the Dying Will Flame has its own destructive property, it's super condensed energy. Mukuro realizes that his gloves can burn but Tsuna replies that there is more and charges at him. But Mukuro tries to intercept him with his stick but Tsuna disappears behind him, Mukuro starts screaming that it is impossible to disappear as Reborn smiles. Tsuna punches him sending him flying and as he gets up he is still wondering how Tsuna disappeared. Tsuna, confident, asks him if he is done warming up, making Mukuro laugh, claims that with Tsuna's body, without scheming, he can just attack mafia families directly and cause a war in the mafia. Reborn concludes that, that is Mukuro's true goal but he remarks that he is not so small minded and that his true goal is to posses every important person in the world and through them he will paint the world in a pure and beautiful darkness, a world war. But first he wants to eradicate the mafia only for him to be questioned by Reborn and Tsuna as to why he is so obsessed with the mafia and if he holds a grudge with them.But unfortunately, Mukuro replies he will give no more further information and that Tsuna will become his. Mukuro sends an illusion flying at him which Tsuna realizes but he gets hurt by the rocks in the illusion as Reborn calls him stupid and to pay attention. Tsuna rubbing his eye in pain as Mukuro jumps in the air thinking he got him. But Tsuna lights up his gloves and again disappears behind Mukuro and punches him to the ground. Greatly injured, Mukuro stares at him claiming that Vongola the tenth is the man who defeated him and tells Tsuna to finish him off, but Tsuna refuses, turning around and walking away from him. Mukuro starts to smile and grabs Tsuna in a lock claiming that his softness will get him killed. Mukuro attacks him as Tsuna is unable to use his arms and Mukuro claims the reason he sent so many assassins after Tsuna was because he got draw out his power and then take over him. Mukuro now throws Tsuna into the trident stick which is stuck in wall and claims that Tsuna cannot maneuver in midair and he will lose because of his kindness. Reborn yells at Tsuna and tells him to show Mukuro the true power of the X-Gloves and Tsuna screams, lighting the gloves, and thrusts himself forward and away from the trident (High speed maneuvering and using the flame as propulsion) and to Mukuro. Mukuro realizes that is how he disappeared before and Tsuna grabs him and throws him to the wall, ending the battle.