Kensuke and Moe have been best friends since their university days, and are so close that they often fight. Although they are aware of each other, time has passed without them being able to be honest with each other, and now they are... but recently Kensuke confessed that he wanted to stop being friends. In reality, Moe wants to say yes right away, but she has had many failed relationships and is hesitant to say no. Then, one day, Kensuke shows up at Moe's house saying that the bathtub is broken...!?