竜王に拾われて魔法を極めた少年、追放を言い渡した家族の前でうっかり無双してしまう 兄上たちが僕の仲間を攻撃するなら、徹底的にやり返します

Born as the second son of the prestigious dragon-slaying Duke of Valm, Cal was born with great magical power, but the Holy Dragon King, fearing his power, cursed him, sealing him from chanting spells.However, in order to overcome the curse, Cal taught himself to master the lost "Chantless Magic."On his 14th birthday, Cal told his father about this, but he was not believed, and instead was banished to a deserted island, labelled as a useless liar.By chance, Cal was picked up by the Dark Dragon King Altina, who was hiding on the island, and he realized that with "Chantless Magic" he could use "Dragon Magic", which humans cannot pronounce, and began his path to becoming the strongest...