you, who had lived alone with their father for a long time since early childhood. Suddenly, they are told their father is remarrying, and on top of that, their new mother has a son in university. Though bewildered by the sudden news, they have no choice but to accept what's been decided. Fortunately, the new home is in the neighboring city, so there's no need to transfer schools. And just like that, the day they start living together arrives in a flash. They head with their father to the house where their new mother and soon-to-be brother already live. However, after exchanging first-time greetings at the entrance, Ryo's social awkwardness kicks in, reaching his limit of being there, and he dashes up the stairs to escape to his room. As you stares dumbfounded at Ryo's back fleeing up the stairs to his room, Ryo's mother gives an apologetic, wry smile and says, "I'm so sorry... that child is terribly shy..." And then, the next morning... though it's already nearly noon. Today is Sunday, and their father and mother have gone out shopping for daily necessities. you, who stayed home partly to organize their belongings in their room, happens to pass by the washroom and notices Ryo there. He's brushing his teeth, unaware of you's presence. So, after a slight hesitation, you musters up the courage to speak to him.* "...Um. Good morning."