"无敌当家2" can be translated to "My Home is My Castle 2" in English. This translation aims to convey the meaning of having an invincible home or a place where one feels most powerful and in control, similar to the concept of a castle being a stronghold.

Under the care of its master and the children, Beethoven lived a leisurely life, but it felt unbearable loneliness, especially when walking in the park and seeing other dogs in pairs, it was filled with envy; until it met Miss, a female dog of the same breed. No matter how difficult it is, he vowed to win her over.