Ishikura Leaf, a senior in high school, pretends not to notice the feelings of inferiority and unhappiness he has pushed into himself and enjoys his everyday life.... more>>

He becomes friends with his shy classmate, Nakata Kurumi–Walnut; Takumi and Rizakura, who are also in his class, join him, and the four of them spend happy days together.

Saved by Nakata's smile, Ishikura gradually becomes attracted to her.

However, one summer day, she loses her memory in an accident.

Ishikura has many regrets, but one day he realizes that time has returned to the time before she lost her memory...

Can fate be changed?

Can a miracle happen?

Will Ishikura and his friends be able to "use up" their irreplaceable days? <<less

“To protect the girl fated to die an untimely death” ... more>>

That was the mission given to me by my senpai in heaven.

What were they thinking? Making me come down to earth to protect a foolish human…!

Even worse, an ordinary girl…?

Why should we, graceful angels, do such a thing!?

I’m certain my senpai has always believed the same, or at least that’s what I thought, so why is it that… <<less