The story revolves around Azusa Aizawa, a 27-year-old woman who unexpectedly dies from overwork at her workplace. However, this is not the end of the main character's story. You see, she is given an amazing chance to reincarnate in a parallel universe, where she hopes to live another life with a soul-soothing tranquility. But will Azusa be able to relax even after death, let go of all worries in her mind, and truly become serene?