The pianist in the six-fold room

A young pianist known as 'the Pianist of the Three-Tatami Room' has uploaded a video singing 'Piano Man' on a streaming site, igniting the hearts of those around him and intertwining their lives together as they unknowingly support and encourage one another. The first episode features Murakawa, who lives to avoid relationships with others, eight years after his friend Shou passed away due to power harassment in a traffic accident. In his new job location, Murakawa encounters power harassment again, struggling with a connection to his past self... This is the premise. The second episode focuses on Taizou Nakanishi, played by Danda, who is the father of Shou. Eight years after losing his son in a traffic accident, a former superior who harassed his son appears before the lonely Taizou as he approaches retirement, causing him to waver. However, through an unexpected encounter with a young person, he learns about the Pianist of the Three-Tatami Room on a video site... In the third episode, the story centers around Shou's former superior, Hideo Kamikawa, played by Harada. Kamikawa faces problems due to power harassment and is fired from the company. Alone and without support, he meets Yoshie (played by Yumi Asou) and two young brothers at a children's cafeteria. To his surprise, the Pianist of the Three-Tatami Room that Shou left behind begins to illuminate Kamikawa's future... In the final episode, Minami plays a high school girl, Misao Arimura, who possesses the looks of an underground idol. Misao writes lyrics and composes music on her own, yearning to pursue the music she truly loves. While troubled about her idol activities and future, she finds encouragement by watching videos of the Pianist of the Three-Tatami Room, but one day, her comments unexpectedly receive a response... This is the unfolding of the story.