Having idle conversations and living with someone. Natsuki reminds you of these warm feelings you had forgotten about after living alone for so long. Natsuki works really hard for you, and in return, you try to reward her with a beautiful view...

After your cold words, Natsuki tells you what's on her mind. You and your stubborn sister find out what you both are actually feeling for the first time. Soon, these carefree yet important days come to an end when summer vacation ends...