The fate of three governed by love awakened the sixth Protagonist

In the interim, when hostility and war were the only way to sustain power, three children who were born among three hostile tribes as their only hope of gaining power brought the ascent of love with them. Their love was surmounting their quest for power. But one thing was uncertain, how their tribe's men would react to their love. Read along to know how they unlocked the cage of the sixth protagonist. 'Wait! Does it mean, the three were meant to be together, by unveiling the sixth protagonist?"