In the auditorium of Tianhai No. 1 High School, Xia Mu, a senior in high school, was struggling to choose between becoming a Beast Tamer or a Beast Breeder when the Old Deng's Counterattack System suddenly appeared. [Ding! The Old Deng's Counterattack System is now online!] [At forty years old, you've struggled for most of your life, still a lowly Beast Breeder in middle age. When Tianhai City is breached by the Abyss Bone Dragon, reduced to scorched earth, and your friends and family suffer heavy casualties, you regret not becoming a Beast Tamer. Do you muster the courage to try again, embark on the path of Beast Taming, and rise up in your old age to dance with joy?] [In Tianhai No. 1 High School, now the lair of the Abyss Bone Dragon, make the choice to become a Beast Tamer, beginning your counterattack journey. Reward: Old Deng's Counterattack Gift Pack.] Xia Mu stared blankly at the suddenly appearing system. Wait, I'm only 16? What the hell is Old Deng's Counterattack? System Bro...

Xia Mu traveled to the elf world and became a soldier who was about to participate in the Rocket Team's Death Trial. He accidentally saw the bubble box that popped up from all things.

There is a lot of content in the bubble box, which is the target's true thoughts and brings Xia Mu a lot of valuable information.

A certain Poké Ball: [Don't choose the one trapped inside me. It's been injected with a mania potion.]

A certain Golbat: [My old lover gave birth to a highly gifted offspring for me, and I hid the Pokémon egg on the Isle of the Dead.]

A Rockets soldier: [I secretly hid the high-end ball deep in the trash can, I hope no one finds it.]

An Alliance undercover agent: [When will the net close? I'm about to become the third in command of the base.]

A training manual for a certain Poison-type Pokémon: [You didn't expect this, didn't you? I was written by that showy Sakaki. To show off, I even had to use fire to reveal the hidden content.]

A certain Pokémon egg in a certain breeding house: [Don't be fooled by my untidy appearance. I am actually a single-headed dragon, commonly known as a quasi-god.]

A certain cold rock: [Why hasn't anyone come to take Old Man Liu's ice secret book? It's so annoying to have to wait this long.]

With various untold secrets, rare training experiences, energy block formulas, etc., Xia Mu quickly became a powerful league champion by relying on various opportunities.