Description

You find yourself lost in a strange world and meet a girl bound in armor that... must be that older girl who used to live in your neighborhood? Sword in hand, join this girl on her journey of atonement and monster-bashing. Assist her, meet the strange inhabitants of the world, get caught up in everyone's affairs, and see where your journey takes you, and what mysteries might unfold before you.

[From AliceSoftWiki]