After Five Years of Seclusion, the Mad Doctor Returns

In an accident five years ago, Yu Hualong survived the catastrophe and was accepted as his successor by Yaowang Island. Countless big bosses worshiped him. Five years later, Yu Hualong returned to the city, only to find that his entire family had been massacred, leaving only his childhood sweetheart and girlfriend who stayed with him. Those who love me, I will repay tenfold; those who harm me, I will repay a hundredfold! Repay kindness with kindness, revenge with hatred, I am invincible, you can do whatever you want!