The professor rushed at the two of them jumping up and trying to dropkick them but Finn made an ice wall to protect themselves from the now hulking old man. The ice wall was shattered but the ice was just a distraction as a fireball was blasted at the old man and Finn appeared behind him firing an ice spike at the old man's back. The old man blocked the fireball with one arm and caught the ice spike with another. He placed the ice spike at the fire, melting it and making water by putting it out. He then did a spin kick at Finn but he used his spear to block but he was still blasted back making a small crater at the wall he landed in. The professor then punched at Willow but she pulled out five contracts summoning 5 goblins. The professor got annoyed at these new things and just wanted to get the mana stones so he kicked one of the goblins heads off and it went through another goblin killing it. He went towards the other two but realized that that one was missing he felt a sharp pain as a knife was in his back and now got frustrated he grabbed the two other goblins crushing their heads and now with all the blood going around blood went on to the assassin goblin and the professor kicking it into a the floor snapping it tiny little spine he then picked it up ripping it in two. He went to attack Willow but his feet were suddenly covered in ice he then felt Finn step on his head to get over to Willow. The professor used his fist to break the ice but this gave them a chance as they both kicked him pushing him back into a wall. The professor was furious and grabbed two pieces of the wall using one as a shield and breaking one to be a makeshift sword he then charged at them ready to be out for blood.
The old man rushed over swinging his makeshift sword but they both blocked with their weapons and slashed at him but he blocked with his shield. Finn hit the shield freezing a part of it and then blocked his sword slash. Willow then used a spark making a fireball melting the ice off the shield making a puddle below him then Finn made the water back into ice turning it to a ice spike trying to end this battle now but the professor used the shield to block but it cracked. The professor used his shield to bash Finn and as it cracked he grabbed Finn throwing him into a wall. He went to fight Willow but fire was blasted into his face as she went for 25 more contracts releasing 3 big goblins, 2 mage goblins and 20 normal goblins. The professor went to go kill them but he couldn't even get close since the mage kept firing fireballs when he even got close so he decided to pick up a rock and threw it at the mage goblins but the big goblins blocked the incoming attack. He didn't know what to do so he decided to continue to chuck the rocks at the group again but as he did this all of the normal goblins have bitten him but and stabbed him with mana swords so he began to kill them he stomped on one snapped the neck of others and then crush the head of the last. He was about to continue throw rocks but he saw Willow smiling flipping him off saying, "I learned a thing or two from Jin." He didn't know what she meant but as he began to try and run at them he felt an explosion send him back as the mana swords the goblins were carrying had exploded. He was in a small crater in the wall but he could still fight as he jumped towards the goblins killing them in a instant but he saw a contract in her hand and tried to grab it but he noticed a mana string on it as he grabbed it his hand suddenly froze and he was kicked back by Willow into a wall. Finn also made ice to launch the goblins mana stone towards Jin to get him even more powered up.
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At Jin
Jin was feeling extremely powerful overflowing and also felt like if he got any more he would die but his mana twin told him to keep going as he finished even the mana stones Finn sent him his mana twin told him to let him take control and he felt like he trusted him enough so he let him take control. The mana twin broke down all the bosses crystals drawing things on its body and took his time cause he needed to get this right since it would be awhile to get the things to do these things again.
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Back to the fight
The professor went to punch Finn but he dodged and took his ice back from his hand. Finn then used the ice adding it to his ice hand making a blade then stabbing the professor breaking it off then jumping back making the ice blade expand and explode in him. The professor who was still holding the contract went to go attack but he felt himself being pulled back as the contract had a mana string attached to it he felt something heating up in his hand so he let it go and then saw an explosion coming from it so he guard but this wasn't that effective as he was blasted back into a wall in a blood pulp. The professor coughed up blood but he wasn't afraid to die he was sad that he would have to use this he took out a mana stone eating it whole as his body went back to it original state and his power seemed to sky rocket. Finn and Willow went towards each other getting ready to fight but the old man appeared in front of them without them even noticing, knocking them back into a wall. As he went to go for a kill a man with long white hair and mana tattoos on his body appeared punching him sending him flying. The professor fell to the floor and was gonna run but Jin's mana twin that was in his body said, "Emperor's Ki." As soon as the words left his mouth the professor couldn't even move an inch. Jin's mana twin spoke once again, "Electricity energy." Ten lightning dragons appeared but that was not the end of his words as he uttered ,"Enhancement energy." The lightning dragon went into his arm as he yelled, "LIGHTNING DRAGON JAB." A giant dragon came out of his hand as the dragon ate everything in its path destroying the wall of the dungeon going past destroying parts of the forest then finally it reached a mountain destroying it and disappearing. The tattoos soon disappeared as Jin got his body back from his mana twin and he went to his teammates picking them up and started walking back to the city.