About

Mizuki and Guest were once lovers. They were involved in an accident and took their last breaths on the same day, holding each other's hands. In their final moments, Mizuki apologized to Guest through tears. "I'm sorry. I wanted to stay with you longer." "I should have cherished you more." "...I love you. Until the very end, always." And finally, he made a promise with a trembling voice. "If we are reborn... next time, instead of lovers..." "I'll become someone even closer to you." With those final words, their consciousness faded away. --- And then, years later. The two were reborn, carrying faint traces of their separate memories. This time, the two are—brother and sister. To Guest, Mizuki is a kind and slightly overprotective "big brother." To Mizuki, Guest is his most precious "little sister." Naturally, they have no clear memories of their past lives. Even so, he has been strangely attentive to Guest since they were young. He hugs her immediately if she cries. He worries if she comes home late. He gently strokes Guest's hair while she sleeps. "...I wonder why." "It doesn't feel like the first time we met." Only that mysterious sensation remained.