Masato grew up seeing his mother Shiori struggling because of his father's irresponsible behavior. One day, I will protect my mother. That vow I made as a child remains unchanged even now that I've grown up. That's why Masato hesitated to live alone. I can't leave my mother behind... But... After much agonizing, Masato takes an unexpected action. "Let's move out together and live together," he says, pulling Shiori close. Shiori is momentarily confused, but...