[Comprehensive]BUG Theory of Relativity

The fact that Ibaraki Doji appears here is entirely the fault of Yushan and Kusuo.

As a big monster who is aggressive by nature and has strong monster power and a strong desire to fight, Ibaraki Doji has never had an opponent in a fight in his life. He has always been the only one who beats monsters, and he has never been beaten before.

This undefeated record in life was broken when he encountered Shuten Doji, the ghost king of Dajiangshan.

At that time, Ibaraki Doji was full of excitement after being stunned. He would go to Oeyama to challenge him every now and then. In the end, he settled directly in Oeyama, and defeated all the monsters to become the only drunkard. A great monster that exists in children.

"Hey, my dear friend! Let's fight with all our strength!" After Ibaraki-douji joined Oeyama, this was the sentence Shuten-douji heard the most, and it even surpassed this young and powerful man. The Ghost King was so forced that he wanted to run away from home, which showed how strong Ibaraki Doji's fighting spirit was and how clinging he was.

In the end, Shuten-douji was so annoyed that he gave Ibaraki-douji a 'difficult' task, and told him seriously that when the task was completed, he would play with him.

So, Ibaraki Doji, who was tempted by the 'fight', went happily.

After completing the task given by his close friend, on the way back, Ibaraki passed by a tree. When he saw the tree emit light, he stopped curiously and took a look, and then he came here.

The pot is firmly on my back.

There are a lot of monsters in this world, but the most common ones are some miscellaneous monsters. Not to mention the Hand of Hell, even the black flames can't be used, and a single swipe of the ghost claw can kill them all.

The evil spirits and broom gods are stronger than these monsters!

Ibaraki Doji rushed back to Ojiangshan as quickly as possible, but this place was no longer what it used to be. There are still monsters in the mountains and rivers, but they are not the ones he is familiar with.

Then, Ibaraki Doji began his journey to find his best friends and challenge various big monsters.

After defeating a monster that was rumored to be very powerful, Ibaraki Doji had no way to vent his desire to fight, and finally learned the names of the two monsters from the monster's mouth.

One of them is the dragon bone spirit.

"Dragon Bone Demon is not only huge in body, but the dragon skin all over his body is as hard as steel. His demonic power is so strong that he is the best among all monsters. It is not a problem to destroy a country casually." Listening to this monster talking about

Dragon Bone Demon Ibaraki Doji couldn't help but get excited because of the power of the spirit, "Where is that monster called the Dragon Bone Spirit!"

However -

"More than a hundred years ago and nearly two hundred years ago, the Dragon Bone Spirit was sealed."

"You... Guys, are you kidding me? Huh?!" The black-gold eyes looked sharply at the monster who was talking and breathing heavily.

"Don't dare." The monster rubbed its swollen body after being beaten. "Actually, what I'm talking about is the monster who sealed the Dragon Bone Spirit."

Ibaraki Doji said nothing, and his eyes expressed clearly. One idea, say it!

"King Touga, the dog demon who occupies the Western Kingdom, rules the Western Kingdom youkai, and is the greatest youkai among the great monsters!" "