Reincarnated as a Cat and Began to Struggle to Survive

[Female protagonist, skill flow, evolution, revenge, emotionless line] Magic! Skill! Fighting skills! This is the message Suzuhara Ai received when she came to this world. As the school beauty of a prestigious school, she traveled through time together with her classmates in a strange explosion. Everyone else has become the pride of heaven, but she has become a cat? And bound with a unique skill [Observer] that can see through the world. When she was about to starve to death, she was adopted by a kind-hearted farmer. She thought she would have a new family and peace in this different world. However, the war mercilessly burned down the village. She was forced to run away again and watched helplessly as her family fell into a pool of blood. "I've had enough... I've had enough of my own weakness and incompetence!" Since the human world is so cruel, then—— It's up to her, this monster, to reach the pinnacle of power and become the "Demon King" who makes the world tremble! "They called me a scourge, they called me a devil... And they were right for once."