I Was Reincarnated as the Best Friend of a Mastermind With the [Instant Death Cheat], and as a Result of Accidentally Going Too Far, the Protagonist Seems to Have Disappeared From the Storyline

One day, the protagonist woke up and found himself reincarnated as a character called Noa Kirisaki in a certain light novel world. In the original story, this character was a mastermind’s best friend and did not play much of a role because he did not want to stand out. However, he is the only character in the …… story that has an instant death cheat and is the most powerful character in the story. Monster, human, or machine, he can kill them instantly. The protagonist wondered. (Huh? Can I move Noa on my own? I’m going to use it all up, from behind-the-scenes work to dungeon life! All those who piss me off will be eliminated immediately!) Disgusting guy who showed up. When eliminated...