Look Down on Animal Trainers? I Made a Backhand Contract with the Sky-Swallowing Beast

[System + cool writing + fast pace + no heroine] The game merges with the real world, and countless secret realms of Warcraft descend on the world. Humans have awakened various professions, but Chen Fan discovered that he had awakened the weakest combat profession, the beast tamer? "Beast tamers can only contract low-level monsters. They are destined to only tame low-level monsters as pets in this life." However, Chen Fan awakened the strongest beast tamer system and rewarded the egg of the SSS level monster at the beginning. "Your Sky-Swallowing Beast Devours the Wind Wolf, Agility +1" "Your sky-swallowing beast swallows the violent demon bear, and its strength +1" So... "Isn't he a beast tamer? Why can he hold a giant sword?" "This is called a beast tamer? Why is he smarter than my mage? He turned the comet of pyroxene into a torrent of souls!" I have a system, so cheating is reasonable. (The plot is compact, illogical, and the introduction is weak, please read the text)