Lili Zwingli has always been a timid, outspoken girl, she has always cared deeply for her big brother, Vash, and hardly does anything without him. One day Lili goes off to play by herself to not disturb her loving, hard working big brother. She meets two young men, Elijah and Gilbert, and soon befriends them, but what happens when it becomes something more than a friendship? Will she follow her heart in an attempt to become strong like her beloved friends and big brother, or stay a timid, sheltered girl? Will she even know how to become strong? Not alone, she won't.