Tenmasou is an inn existing between this world and the afterlife. Souls come to Tenmasou and stay temporarily, until a decision is made if they will return to this world or continue on to the afterlife. Nozomi and her younger sister Kanae manages Tenmasou. One day, their half-sister Tamae’s soul comes to stay at Tenmasou. Adapted from the manga series "Tenmasou no Sanshimai: Sky High" (天間荘の三姉妹) by Takahashi Tsutomu (高橋ツトム).