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After defeating the fallen god-king in divine war, Ziel Grisel (Ken Nijisaki) is cursed by his opponent and loses all his emotions. Ken feels the emptiness in his life and decides to create reincarnation magic by using his innate ability to dispel the curse.
Nine hundred years have passed, and Ken has been successfully reincarnated. Unfortunately, the curse cannot be removed, and Ken is forced to live in that era without his emotions. After learning that fact, Ken is determined to live a quiet and peaceful life as... a butler?

Invincible Colorless Butler

The atmosphere in the cafeteria became noisy after the students who were having lunch heard Prince Ozkar's words. Some even joined in mocking Kyouka and the others. But Clara and the other human academy students decided to ignore that voices.

Prince Ozkar and several of his underlings walked over to Ziel's desk. His eyes kept staring intently at Kyouka, who was sitting next to Clara. Princess Irene panicked after seeing Prince Ozkar walking closer and closer to their table. She felt that Prince Ozkar intended to find trouble with them.

Princess Irene is afraid that Prince Ozkar will accidentally offend Ziel and make Arcuz Grand Academy also be affected because she knows that Raphael, who was considered strong by everyone from the demi-human academy, was nothing compared to Ziel.

Chapter 39