Enmusubi no Youko-chan

In a world where Spirits and Humans coexist and can fall in love with each other, the Spirits's life expectancy being far superior to the Human's one can only see their loved one dying before them. Even when that human is reborn, the previous memories of his past life is erased from his memory. However, it is said among Spirits that a certain “service” is spreading. This “service” is provided by the “Fox Spirit Matchmakers” who can revive the lost memories of their former lover. When the Spirits lose their lover, they can purchase the “service” of the “Fox Spirit Matchmakers” so that they could attempt to regain their former lover memories and start over a new love story. This story follows a young Fox Spirit Matchmaker who tries her best to restore lost memories and spread love.

(Source: Anime News Network)