YuJJun
Hoshina Shuuji, high schooler, had the most perfect, caring girlfriend he could ask for, Ayachi Nene. Love bloomed in the air, and it seemed that every day -- no, every second with Nene was to be a blissful time forever.
But then she disappeared.
Her heart fragments, fully restored, caused her to warp back in time to when she was a little child. To when her parents were still together. Soon, the world itself would go back in time.
This is a story of Nene's restart -- a heartbreaking, yet bittersweet journey of a young girl and her love.