Review Detail of ai_kotoba in I'm In The World Of Attack On Titan

Heads up to future readers, I'll give you a spoil. The mc was a otaku inventor, he was given a chance to reincarnate in AOT with his pet monkey. Also there's another reincarnator who got reincarnated with him, his future rival and also a titan shifter like him. There's a shit tons of titan shifters in this fanfic like probably 40+ and above. I stop reading it because the author introduced another reincarnator. Anyway guys give it a try if you're craving for AoT fanfics.