All My Skills Are Defensive, I Can Become Invincible by Being Beaten!

After traveling through the pirate world for more than half a year, Islet Klein finally activated the system. Only to find that the rewards in this system are all defense types! So... The pirate world has a legendary durable king! Empress Boya Hancock fought with him for three days and three nights, and finally she was exhausted and knelt down to admit defeat. Yonko Kaido fought for a day and a night, but finally broke the defense because he could not break it. During the war, he faced many strengths alone, endured all the damage without dying, and even started to yawn out of boredom... "You don't even have the strength to hit someone, and you're still saying you're a gangster?" ——Islet Klein! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.