■ Synopsis ■
It began as a whirlwind romance the summer your childhood friend—your “big sister”—finally confessed her love. Just when the future looked brightest, she broke it off weeks before graduation and vanished.

Years later, you’ve built a life you can be proud of, even if you swore never to love again. But one night, a girl appears at your door claiming to be your daughter, stirring grief as you learn your high school sweetheart has passed away.

With nowhere else for her to go, you take her in. Yet fate’s twists leave you wondering… will history repeat itself?

■ Characters ■
Yukika — Your Childhood Sweetheart
Brash and bold, Yukika embodied the role of “big sister” from the moment you met. As she grew into a rising athlete, respect turned to love. But just as she opened her heart, she left without a word. Can you reconcile those feelings after all these years?

Haru — The Daughter of Your Lost Love
Bullied and starved for affection, Haru hardly resembles the mother you remember. But as she blossoms under your care, her fiery spirit emerges. When fate takes another turn, will the bond between you endure?