Summer Time Machine Blues is based around a group of friends in a science-fiction club who spend their days fooling around at the clubhouse. The boys play a game of baseball as their friend Yui Ito takes pictures of them nearby. After the game, the boys return to the clubhouse and head off to the bathhouse leaving the girls, Yui and Haruka to develop their pictures. While they bathe, Niimi gets angry because he thinks someone stole his Vidal Sassoon shampoo. On their way back, Takuma decides to sneak off to buy tickets at the theater for a sci-fi B movie. He hopes that he can ask Haruka out. Haruka says that she does not want to go out with him since he apparently has a girlfriend, but Takuma has no idea what she is talking about. But when he returns to the clubhouse, his friends act very strangely as to where he has been. They make him explain what happened, but through a series of chain events, Daigo accidentally spills Coke all over the air-conditioner remote control after being hit in the face. Everyone rushes to try to clean the remote off, but it's too late. The remote is broken and they cannot turn on the air-conditioner. This immediately becomes a problem as the day becomes hotter. The remote apparently cannot be repaired as it is too old, so the boys give it to their club advisor to try to fix. They look for a fan in the meantime but only find broken ones. Back at the clubhouse, the boys discover a strange boy in the room who hurriedly escapes, leaving behind some sort of machine. They put Sago on the time machine thinking it is a practical joke on the sci-fi club, but to their surprise it actually works. Sago appears in a picture of their baseball game that they held yesterday. They fool around discovering that it is a time machine. The boys decide to travel to the past to steal the remote control before it was broken and bring it back to the present. But as soon as they step back one day, they run into problems beyond their control. While Daigo, Niimi andWatch drama online for free.