This is an automatically translated description

It's time for the summer holidays! Just like every year, Sarah, Cassiopeia and Lucille are heading to the small, peaceful village where their grandmother lives. There they will find old friends, pastoral landscapes, and... a ghost!

A disturbing ghost is wandering around the ruins by the lake. Where did it come from? What is its secret? And why does it ring the bell of the old church? Finding answers to these questions is the new mission of the three-sister club!

But to solve the mystery, the girls must go back in time, meet knights and beautiful ladies, deal with the love affairs of the past and present, and not get lost among the wide fields of wheat and never-sent letters...