Lobi and Yoyo live in a family of four. Their father is a great inventor who plays with them and solves all kinds of problems for them. Their mother places great emphasis on exercise and health, and is full of love. They also have a mischievous and playful pet fish named BOBO. In this adorable world, although sometimes noisy and chaotic, Lobi and Yoyo experience all sorts of adventures and live a very happy and joyful life.