Evolution: The World of Sacred Device

Mag Launcher is the only child in a legendary family of adventurers. Several years ago, a cute little girl showed up on the doorstep of the Launcher house, holding a letter from Mag's father, who had went long ago on another dangerous adventure, and hadn't returned since then. In the letter, Mag's father asked him to protect the little girl (named Linear Cannon). Since then, the two children have been living together in the Launcher house. Mag's father never came back... One fine day, the 8th Em...