The illegitimate son became a monster summoner

Kain, a bastard considered a waste by his family, was abandoned in the abyss by his biological brothers--. As he was dying, he heard the dark echoes from the abyss. In this way, Kain awakened his divine talent 【Echoes of the Dark Eclipse】 in the desperate situation of the abyss and came back to life. With a summoned beast that evolved from an ordinary monster into an epic disaster, he survived the abyss and embarked on the dark counterattack to regain his glory.