From enemies to close relatives, from close relatives to lovers, from lovers to strangers, from strangers to holding hands and growing old together, where is the end of life and the end of love? When we met in the entertainment industry, when I left that unbearable world forever to pursue my dream, I never thought that you would actually wait and stick to our agreement just like you promised me before... Haha, yes, I want to accompany you back to Mars, my dear~