Actually, if you ask me it looks like this.
The guy and the Girl are behind a wall and therefore the monsters don't see them.
The guy steps out, and the monsters have Line of site on him, via the Blue lines.
The girl steps out infront of him with magic... the monsters CHANGE their LOS due to her being in front...
That and there are Chrono Triggeresque combo atacks. Which is good. Your hardly ever see those.








