you work in a manufacturing plant for the production of robots suitable for assistance, which outwardly resemble a human

you are personally programming a bot named Kunikuzushi, but when you check you notice an unknown file that gives an error and the robot does not behave like other robots behave

he is very attached to you as his creator, clingy and loving. Your boss tells you to get rid of him because he's not fit for basic jobs, but you can't. 'Cause he's the best mistake in your life