"Let's join hands, our hearts will definitely be connected" Ako Oyster Relay Marathon official theme song. "Fun Run" is an abbreviation for "Fun Running." There are many moments when we can smile by running together with the same goal. Such connections vividly color our days. Difficult times are proof that you can become stronger. Remembering the important person next to you, you can start running again. The positive and light lyrics and rhythmic and grand arrangement give people a push.