The thing that had happened on the underground, unfortunately, that Yuuki, Jeanne, and Rossweisse didn't know about it.

Jeanne and Rossweisse stood up quite far looking at the battle of Yuuki and Crom Cruach. They hugged their bodies tightly since it was really cold for them even though Yuuki had given them a special jacket before the battle.

"This guy..." Jeanne looked at Yuuki and wondered how strong this guy was. She knew that this guy had a lot of weapons on his bodies and all of them had strengths similar or stronger than any Sacred Gear. She looked at Rossweisse and asked, "How many weapons does he have?"

Rossweisse naturally knew that Yuuki didn't have a lot of weapons, but rather he could do a lot of things with his magic, especially weapons, however, it was a secret and she wouldn't tell such an important thing here. "A lot."

"........"

Jeanne shook her head and said, "I'll just watch." She hugged her body and said, "Can this jacket become warmer?"

Rossweisse observed the jacket and said, "Oh, there is temperature control on the pocket."

"What? Really?" Jeanne hurriedly tried to find it since she couldn't get used to this cold.

Rossweissei and Jeanne didn't feel worried about Yuuki anymore when they saw his battle.

Yuuki had large ice wings on his back along with a long tail that came out from his tailbone. He was holding his katana while controlling numerous pillars of ice toward Crom Cruach.

Crom Cruach only stood up and blasted his aura to stop the attack on the pillar of ice. *BAAAMMM!!!!*

Yuuki didn't stop his attack and created a large mountain of ice on the top of Crom Cruach directly wanted to turn him into mincemeat.

Crom Cruach was known for his immense power and he was also the strongest evil dragon in terms of strength. He saw a large shadow on the top of himself and raised his fist to smash this mountain of ice.

*BOOOOOOOMMM!!!!*

The castle was in tremor with their battle and every place was in ruin with a lot of ice covering the area.

Crom Cruach and Yuuki charged toward each other at the same time.

Crom Cruach who moved created a large impact and created a large crater with his movement.

Yuuki, who also moved, also created a very cold temperature around his body, making the area around him covered in ice.

They had fought enough from the long-range area and decided to fight in close combat.

*Bang!* *Bang!* *Bang!*

Yuuki slashed his sword wildly and didn't care whether his sword was chipped or destroyed. He also felt that with each contact of the fist of Crom Crouch he understood how powerful the body of this evil dragon was. If he didn't have to receive a reward in the past that gave him a powerful body then his bone might be broken into dust after a few contacts. That was also the reason why he usually loved to fight from a long-range since his body wasn't powerful enough. However, he had received a reward and he could fight wildly in this close combat battle. He kept attacking while creating overflowing ice from his blade in the form of a crescent. "Crom Cruach!!!"

Crom Cruach had this large grin on his face while punching both of his fists wildly against Yuuki's katana. His durability was very strong and he had an immense resistance to damage. His fists were covered in ice and it made his reaction a bit slow while also chipped some of his outer skin since it was very cold, but all of them were superficial wounds. He didn't want to stop this battle and he thought that it was right to have a battle with this guy. "Hahaha!!!"

Yuuki and Crom Cruach didn't use all of their full power since they didn't have an intention to fight to the death, but they took this battle seriously with the intention of taking down the opponent in front of them.

*Swoosh!* *Swoosh!* *Swoosh!*

Yuuki swung his swords very fast and sent out a hundred, no, thousand of sharp crescent ice slashes toward Crom Cruach.

Crom Cruach sometimes dodged, sometimes destroyed Yuuki's attack with his fist, and sometimes he took this attack directly to his body.

Yuuki wanted to complain at how tough this dragon's skin was and thought that this guy's skin might be stronger than Grendel's.

In the past, he could defeat Grendel easily because he had a weapon that was suitable for fighting that dragon, but Crom Cruach was different since this evil dragon had never been defeated. However, this evil dragon had been controlled by Balor, the Evil God. He was sure that Balor used the eye magic or something to control Crom Cruach, but that thing had happened a very long time ago.

Crom Cruach, who had been liberated, was still alive and used all of his time to train his body to the limit and became the strongest evil dragon that could reach the power of Heavenly Dragon. His weakness also had been eliminated with the effect of the Holy Grail.

That was why Crom Cruach was smiling since it had been a while for him to have a very fun battle.

Even though it was their first meeting, they knew that they were the same fighting maniac.

However, Yuuki had another hobby that was playing with his girlfriends. That was why it was very rare for him to fight since he thought it was better to spend time with his girlfriends rather than fighting.

They kept fighting with each other until the rooftop of the castle was destroyed by someone.

Yuuki and Crom Cruach stopped fighting while looking at the person who had disturbed their battles.