Saku Fukuzawa

The protagonist of this story, a working woman. Owner of Yukichi. Although she is regarded as a beautiful and capable worker in the company, her life skills and abilities unrelated to work are a complete disaster. According to Yukichi, she is a "useless human" with no pride in a bad way. She does not consider Yukichi as an ordinary cat at all, and relies heavily on him. She enjoys delicious homemade meals and drinks prepared by Yukichi, and most importantly, to avoid making Yukichi angry, she reluctantly gets through each day of work.

Before Yukichi came into her life, her house was in a state of disarray, almost like a garbage dump, and she couldn't even use her bed properly.

In reality, she is skilled in jujutsu and is strong in conflicts. When Rio was persistently harassed by her ex-boyfriend, she once threw him to the ground using her jujutsu skills.