What is sorrow? "A feeling of deep distress caused by loss, disappointment, or other misfortune suffered by oneself or others." Carlos Avenue is a young and talented paladin that's been training to slay the dark monster lurking in the shadows. With the will of his God in his heart and his best friend, the saintess, by his side, he sets out to recruit other talented people to aid him on his conquest. But as time passes, dark secrets are going to be revealed. And the monster isn't what he was expecting. Only one question remains, will his sorrow turn into rage and vengeance? Or will he die pitifully with regret and grief in his heart?