Mina has spent two years unable to move past the loss of someone she blames herself for losing. On Valentine's Day, a waiter named Taku introduces her to a café called EDDA — and through some quality the café possesses, she is given a second chance to return to the past and relive the moments that still haunt her. Whether that second chance heals her heart or keeps her anchored there is the choice the story asks her to make.