Due to a traffic accident when I was a child, the character and personality of "I" vary depending on the day of the week. They call each other by the name of the day of the week, and "Tuesday" is the most simple and boring one, and is the character who is forced to do troublesome things such as cleaning the house from other weeks. However, one day, "Tuesday" who was lying in bed after a busy day woke up on Wednesday. The "Wednesday" in my heart disappeared, and "Tuesday" sang praises to Wednesday, but daily life gradually turned into horror.