Tetsunoshin Goes Seadiving

Happongi Hills is high-class residential area where everyone envies the owners. Inuyama family, who manages an IT company, moved Happoingi Hills from local area with their toy poodle pet, Tetsunoshin. However, Tesunoshin was shocked to know that they were very hard up. To protect their life, Tetsunoshin struggles to earn money with his friends.