Beastmaster: from F-Class Skeleton to Undead Master!

[Beast control, system flow, invincible cool writing, pretending to be a pig and eating the tiger, counterattack] During the Awakening Ceremony of Luochuan City, Lin Xiu became the laughing stock of the whole city. His sister is an S-level ice phoenix, but he only awakened the most useless F-level little skeleton. It fell apart when the wind blew, and even the city lord shook his head and gave up. His love rival brought an A-level mutant beast to provoke him in public, claiming that he would never be able to enter a top university in his life. Little did he know, Lin Xiu awakened the [Beast Controlling World Delivery System] on the spot! As long as the contracted beast is released into the world, it can automatically hang up to experience, swallow and evolve! "Your little skeleton hid in the Bone Forest for six days and learned the skill: Reconstructing severed limbs!" "Your little skeleton pries hundreds of tombs in the Bone Burial Ground, evolves into a profession: Skeleton Gunslinger, and gets an exclusive cursed gun!" "Your little skeleton was frantically picking up dead bodies in the battlefield, breaking through to the second level, and his qualifications changed his destiny!" Three days later, the life and death game at the trial ground. When his love rival was about to watch Lin Xiu kneel down and beg for mercy, Lin Xiu silently took off the disguise of the little skeleton. At that moment, the undead murderer wearing black armor and holding a bone gun walked out of the fog. With one shot, all beasts surrendered! "Who said F-class skeletons are useless? Now, it's my turn to show off!"