There were many ninjutsu recorded in the Book of Seals. After Uchiha Obito memorized the Mutually Multiplying Explosive Tags, he continued reading through the later techniques with the others.
But just looking at the side effects listed for those ninjutsu made him shudder.
Good lord, he had thought the side effects of the Multiple Shadow Clone Technique and the Mutually Multiplying Explosive Tags were already outrageous.
Yet it turned out there were even worse ones!
There were ninjutsu that could kill the user outright, as well as techniques that could massively boost a ninjutsu's power at the cost of drastically reducing one's lifespan.
Yuki Yuichi's eyes were dazzled as well. The vast majority of the ninjutsu recorded here were utterly impractical; whether in his previous life or this one, he had never even heard of them.
Most of the ninjutsu recorded in the Book of Seals were either techniques that required extreme buildup or techniques that burned one's life away for an explosive burst of power. They were meant to serve as trump cards.
After finishing the Book of Seals, Yuki Yuichi read through it twice more. The Impure World Reincarnation he had been longing for was not inside, nor was the Reaper Death Seal.
That made him even more certain that Sarutobi Hiruzen had deliberately let them steal it.
Since he had not found the Impure World Reincarnation, Yuki Yuichi stopped dwelling on it. At that moment, he thought of Sarutobi Asuma. He should still be getting beaten up right now, shouldn't he?
Poor Asuma. He had ultimately fallen into the Hokage's trap.
With that in mind, Yuki Yuichi committed the Flying Thunder God Technique to memory, while also choosing the Mutually Multiplying Explosive Tags.
The Flying Thunder God Technique paired with the Mutually Multiplying Explosive Tags was actually