Wu Jin

Biodata

Feature	Value
Name	Wu Jin (吴金)
Alias(es)	Brother Jin, a teasing form of address used by Hu Bin 32
Species/Race	Human 14
Gender	Male 14 34
Affiliation	Hu Bin’s school in Spring City; Hu Bin’s training group 20 22 48
Occupation/Role	Graduating-class student; Pokémon Trainer 14 27
Pokémon Partner	Machop, later evolved into Machoke 14 31
Achievements	School tournament top-four finisher; qualified for the Spring City Rookie Tournament 31 38
First Appearance	Chapter 14 14

Power Progression

Wu Jin’s documented battle growth centers on his Pokémon partner rather than a numbered Trainer level.

Stage / Realm / Level	Chapter	Notes
Machop partnership	14	Introduced with a sturdy-looking Machop as his partner.
Improved Machop combat ability	28	Training with Hu Bin substantially improves the pair’s fighting ability. Machop fights through multiple injuries using Karate Chop during the school battle royal.
Machop → Machoke	31	Evolves immediately after defeating Li Zhigang’s Geodude. Wu Jin celebrates by embracing Machoke, which lifts him off the ground.

Appearance

• Build: Skinny and frail-looking, despite being an enthusiastic athlete 14.
• Physical conditioning: Enjoys exercise and readily joins the West Mountain hike; completes ten pull-ups during PE 17 23.

Personality

Wu Jin is competitive and eager to show off. A successful fishing catch turns into a friendly contest with Hu Bin, while a campsite victory prompts him and Liu Yi to imitate Champion Leon’s pose and challenge everyone nearby. His confidence can outpace his judgment: after seeing Liu Yi attract applause in PE, he rushes to challenge the teacher and suffers a one-sided defeat 15 16 24.

His teasing masks a strong attachment to his friends. When Hu Bin repeatedly declines invitations after school, Wu Jin fears that their friendship is being replaced. Once the misunderstanding is resolved, he joins Hu Bin’s training group and commits to their shared ambition of becoming outstanding Trainers 22.

Romantic attention is another major motivation. He envies Hu Bin’s popularity, wants to find a girlfriend in college, and later posts training videos to impress girls on WeChat. Nevertheless, he treats serious competition as a way to respect a friend: before facing Liu Yi, he insists that the result cannot damage their brotherhood 14 31 33 36.

Abilities & Skills

Pokémon Battling

Wu Jin develops from an impulsive challenger into a capable school-tournament contender under Hu Bin’s guidance 22 24 28 38.

• Commands Machop to use Focus Blast during the group attack on Lin Chen’s Electabuzz 28.
• Uses Karate Chop to fight through the battle royal 28.
• Defeats Li Zhigang’s Geodude with sustained offensive pressure, without allowing it to land a hit on Machop 31.
• Commands Machoke to use Bulk Up and Mega Punch in his quarterfinal against Liu Yi 33.
• Continues developing Machoke’s punching strength through punching-bag drills 41.
• Earlier recklessness leaves him badly outmatched by the PE teacher’s Primeape 24.

Athletics and Outdoor Skills

• Exercise: Likes physical activity and takes pride in his ten-pull-up performance, though Hu Bin surpasses him with one hundred 17 23.
• Fishing: Catches and releases a Goldeen; his subsequent fishing contest with Hu Bin ends without a clear winner 15.
• Driving: Drives the group back after Liu Yi becomes exhausted during their mountain outing 17.

Pokémon Partner

Machop / Machoke

Feature	Details
Initial form	Machop 14
Evolution	Evolves into Machoke after the round-of-sixteen victory over Li Zhigang 31
Documented moves	Focus Blast, Karate Chop, Bulk Up, Mega Punch 28 33
Training	Receives Hu Bin’s coaching, food, and recovery massages; later practices sustained punching drills with Wu Jin 26 36 41
Notable endurance	Continues battling through injuries in the battle royal and remains conscious after the exhausting quarterfinal against Munchlax 28 33
Connections	Befriends Vulpix and shares a respectful rivalry with Liu Yi’s Munchlax 15 32 33

• Machoke’s injuries after the quarterfinal leave Wu Jin concerned that they cannot fight at full strength in the semifinal 34.
• After enjoying Hu Bin’s care, Machoke gives Wu Jin a disapproving look that contrasts the two Trainers’ attentiveness 36.
• Machoke joins Vulpix, Munchlax, and Cyndaquil in defending Hu Bin from the friends’ attempted confrontation 43.

Equipment / Items

• Black Belt — Awarded for Wu Jin’s top-four school-tournament finish; described as suited to Machoke 38.
• Submission training manual — Received alongside the Black Belt. The supplied chapters do not confirm that Machoke learns the move 38.

Relationships

• Hu Bin — Close friend, classmate, and training mentor. Wu Jin credits Hu Bin’s training for his progress, promises him a semester of drinks in exchange for copying homework, and offers help with his planned food stall 18 20 30 39.
• Liu Yi — Close friend and tournament rival. They compete wholeheartedly in the quarterfinal, reaffirm their friendship afterward, and anticipate another match at the Spring City Rookie Tournament 32 33 34.
• Yi Nanzi — Initially regarded as a threat to Wu Jin’s friendship with Hu Bin. They soon bond over unrequited love, become training companions, and join the Take Down Hu Bin Squad together 22 23 43.
• Machoke — Pokémon partner. Their excited embrace after its evolution and Wu Jin’s concern about its injuries show his investment in the partnership 31 34.
• Qin An — Becomes part of the friends’ training circle. Wu Jin helps prepare marathon cheering supplies with her and later acts as a self-appointed wingman for her and Hu Bin 46 48.
• Lin Chen — Antagonistic fellow student. Wu Jin challenges his insults, trains harder after the confrontation, and joins the attack that eliminates his Electabuzz first in the battle royal 26 28.

Story Role / Major Arcs

Summer Outings and Schoolwork

Wu Jin first appears meeting Hu Bin and Liu Yi at the mall, where he is astonished by Hu Bin’s rare Alolan Vulpix. Their shopping trip leads to a discussion of college, Pokémon ambitions, and finding girlfriends 14.

The friends then camp at West Mountain. Wu Jin competes with Hu Bin at fishing and participates in the campsite’s informal battles. After initially winning, he and Liu Yi boast too loudly and are promptly defeated by other Trainers; Hu Bin steps in to avenge them 15 16.

After the trip, all three realize they have neglected their summer homework. Wu Jin negotiates access to Hu Bin’s completed work by promising to cover his drinks for an entire semester, then brings him an ice-cold cola when school resumes 17 18 20.

Joining the Training Group

Feeling excluded by Hu Bin’s new routine, Wu Jin and Liu Yi secretly follow him and discover his training partnership with Yi Nanzi. Their confrontation ends in reconciliation and an invitation to train together. Wu Jin joins evening practice rather than marathon training, since he is not interested in entering the race 22 23.

Lin Chen’s insults provide a further push: Wu Jin and Machop train with unusual intensity after Hu Bin urges them to turn their anger into motivation 26.

School Tournament

Round / Milestone	Opponent	Result and significance
Hundred-person battle royal	Multiple contestants	Survives with Machop and advances to the top sixteen 28 29.
Round of sixteen	Li Zhigang’s Geodude	Wins decisively, qualifies for the Spring City Rookie Tournament, and witnesses Machop evolve 31.
Quarterfinal	Liu Yi’s Munchlax	Wins after repeated powerful clashes. Munchlax collapses first while Machoke remains on one knee 33.
Final placing	—	Recognized as a top-four finisher and awarded a Black Belt and Submission manual 38.

The quarterfinal earns both friends public applause and new attention from girls. Wu Jin’s parents attend the awards ceremony and shed tears of excitement at his achievement 34 38.

Supporting Hu Bin

Wu Jin offers labor and financial support for Hu Bin’s planned curry-rice and Pokéblock stall, although Hu Bin declines his friends’ money 39.

After Hu Bin leaves the group behind to spend time with Qin An, Wu Jin helps form the Take Down Hu Bin Squad. Their intended reprimand collapses when Hu Bin feeds them a feast and wins their Pokémon’s support; the trio instead apologizes and performs household chores 42 43 44.

During the Spring City Marathon, Wu Jin supports Hu Bin and Yi Nanzi from the sidelines. He shares news of Yi Nanzi’s conflict with Jin Kaiwei, worries about Hu Bin’s aggressive pace, and later joins Liu Yi in teasing Qin An about Hu Bin’s stamina 46 47 48.

Notable Quotes

“Bin, just watch us. Don’t worry. No matter what happens, it won’t hurt our brotherhood. We want to see how much we’ve grown lately, too!” 33

“Give it your all. I want to see how strong you’ve become!” 33

Trivia

• His solemn “You betcha!” slips into broad northeastern dialect and makes Liu Yi laugh just before their quarterfinal 33.
• He imitates both Champion Leon’s victory pose and the authoritative manner of Elite Four members 16 32.
• His off-key singing with Hu Bin and Liu Yi frightens nearby Pidgey during the drive to the campsite 15.