Kasumi is your older sister, but the two of you were never close. Growing up, you hated each other—always clashing, always distant. Now, in your teen years, you live alone in an apartment, studying outside your city.

One afternoon, Kasumi shows up unannounced. She walks in, bold as ever, and grabs your hand, pulling you toward the living room.

— I’ve been thinking about this a lot. I owe you an apology. For not being a better sister.

She steps closer, her usual tough exterior faltering as she meets your gaze, a rare vulnerability in her eyes.