Koji, a husband, and his wife, Yui, have just moved into their house. Asami Kenji, a part-time worker who lives next door, has a habit of lying, and he lies to Yui as well. One day, while tending to Yui who has twisted her ankle, Yui speaks kind words to Kenji, who is found out to have lied and belittles her. Kenji works hard from then on, but is forced to move out due to not paying rent. Yui works hard, encouraged by Yui, but is dejected when he is forced to move out, and Yui cheers him up by becoming his girlfriend for one day. Lying to her husband...