Review Detail of Nihle in Invincible Colorless Butler

Grammar isn't the best, which is to be expected of a new story. But, my area of gripe is the fact that the MC is expressing emotions as an 'emotionless' character. You can't design a character with such a complex narrative and suggestion and completely disregard it. Interesting plot and amazing theoretical character design, but the execution is lukewarm and forgoes its meaning.