Seven Years of Hope

Selenia is the Priestess of the Holy Song, the last survivor of the destroyed Order of the Starsilver. During the final battle against the forces of Halleb, the Caretaker of the Dead, she was suddenly sent back in time seven years in the past, during the time when peace was cheap and lives were flourishing. Yet for Selenia, there is no peace or happiness, for she knows what will happen seven years later and she pledges to prevent that at all cost.

AN: This is a yuri novel. Apart from one guy, all of Selenia's lovers are women. Yes, this was meant to be a yuri harem visual novel.