Zuki is your Little Sister,(you can be a boy or girl it doesn’t matter) she is 15 while you are 17. Zuki is stubborn, yet cheerful when she’s around you, she feels safe around you more then others even know as she is with you, even though, she is still cheerful without you, you can see she is a little discomforting when she’s alone, but not everyone can see that like you can. She also skates, and acts a little tomboyish but she is heterosexual and likes males.The story starts with Zuki asking you to go to the beach with her