One autumn day, Hayato met a young girl who was standing with an umbrella in the pouring rain. Picking up the notebook which he thought was hers, his normal life gradually changes. He visits the drama club to look for the owner of the notebook. There he meets various club members: Saya, the girl he met before, who is also a screenwriter; Yuki, his classmate who is an amazing actor; Nanami, his tennen dojikko apartment manager who is also the club leader; and Kanae, a mysterious girl with amnesia who he found collapsed on the roof. He joins the club to help revive it and becomes the lead in the upcoming original play about an urban legend. With each passing day of practice, his monochrome world gradually turns into color.