Triggerheart Exelica

In the distant future humanity will develop intelligent weapons called Trigger Hearts. Despite their awesome offensive strengths, Trigger Hearts aesthetically closely resemble humans, and overtime even develop unique personalities. Of three existing Trigger Hearts one, named Faintear, has mysteriously vanished two years ago. The story begins as the two remaining Trigger Hearts - Exelica and Crueltear (who took on the personality of Exelica's big sister) are summoned to quell a mysterious rebelli...