"My little sister who is more important to me than anything... I want you to promise me. I'm sure you will be happy."
It is two years after her beloved parents as well as her older brother die. The protagonist Mirai is now in her third year of university.
"I have to be happy. I have to smile a lot and make my dream come true ...because, I promised big brother."
With sadness still in her heart, she tries to earnestly live.
The people supporting her are her increasing school friends and a number of men.
Her childhood friend who is back from being a soccer player in Italy, Kouhei.
Her dead brothers physician who has now retired from medicine, Hayato.
Her cool headed but somehow shadowed teacher, Shuuji.
"I... like those people."
Gradually the protagonist awakens to her feelings.
--But soon she has an unforeseen meeting, is it a dream or reality?
Worlds are intersecting and something is happening.
"I want to meet that person again once more."
With that strong wish her frozen heart begins to thaw.
An adult love story weaving the tale of two worlds.
"Please, embrace me."
Who will you fall in love with?
[Translated from the official site]