The Promised Rosary

In a small church, there is a young sister named "Cecilia".She, with the minister of the church would look after young orphans...Among those, is a quiet and intelligent boy, "Marco".Marco secretly harbors feelings for Cecilia, who has always been like a elder sister to him. Marco finds foster parents and it is time for him to say goodbye.Cecilia and Marco get on a ship to head to his new home but... A sudden storm sees them shipwrecked and stranded on an islandAn island of no faith, no morality and plenty of lewdity... A weak sister... a weak boy... what methods must be taken to survive? Can Sister Cecilia successfully deliver Marco to his new home safely?