Li Yuan

Biodata

Feature	Details
Name	Li Yuan (李援)
Alias(es)	Aid King
Species/Race	Human 134
Gender	Male 122
Affiliation	Duel Association 136 137
Occupation/Role	King-tier Duelist; overall person in charge of the National Tournament 122 132
First Appearance	Chapter 122, Aid God Appears, a True King Level Duelist! 122

Background / History

Li Yuan is a true King-tier Duelist who has lived for hundreds of years. Reaching King-tier granted him control over his outward form, allowing him to freely alter his body and apparent age; he usually presents himself as a young man in his twenties despite being far older. 122

Known as the Aid King, he receives Youye at his villa and becomes one of the first established King-tier Duelists to directly assess Youye's unconventional knowledge, strategies, and potential. 122 123

Appearance

Li Yuan generally appears as a youthful man of roughly twenty, though this is a chosen appearance rather than his real age. 122

• Can freely make his body and face appear younger or older. 122
• Has lived for several centuries despite his youthful default form. 122

Personality

Li Yuan is approachable and candid when first meeting Youye, directly explaining the nature of his altered appearance rather than concealing it. 122 He is also intensely analytical in duels, willing to ask technical questions—even when embarrassed—to understand optimal lines and improve his own play. 124 125

As a Duel Association authority, he is pragmatic about threats. During Numeronius Numeronia's appearance, he prioritizes securing the God-tier Spirit's departure and reinforces the Association's support for Youye rather than risking open conflict. 136

Abilities & Skills

King-tier Bond

Li Yuan possesses a King-tier Bond, which gives him extraordinary advantages in a duel.

• His Dueling intuition becomes nearly completely accurate. 123
• His summoned monsters can fully materialize, adding physical pressure beyond ordinary card effects. 123
• He can draw cards through his Bond with exceptional consistency, making his hands and interruptions difficult to predict. 124

Deck Construction and Duel Analysis

Li Yuan rapidly studies powerful strategies and incorporates what he learns into his own deckbuilding.

• Researched a Generaider–Shaddoll strategy capable of establishing El Shaddoll Winda as a Special Summon lock after observing Tearlaments-based plays. 123
• Uses the Rescue-ACE Archetype and later develops it with the Sinful Spoils engine. 124 125 198
• Recognizes the value of generic answers such as Accesscode Talker after watching Youye use it to overcome restrictive fields. 134
• Actively seeks explanations for combo choices, such as Youye's use of I:P Masquerena instead of S:P Little Knight. 124

Duel Association Authority

Li Yuan can mobilize major Duel Association resources and personnel.

• Collected the Apollousa engine, a Rank 7 “Little Airplane,” and other utility cards for Youye. 129
• Led ten King's Path Duelists and one hundred Heaven-tier Duelists against the Nangong Family. 137
• Provided Youye with the Rule Common Card Toadally Awesome, later used in the duel against Nangong Ping. 138

Relationships

• Youye — Initially evaluates Youye as a fellow duelist, then becomes a cooperative ally who seeks to learn from his strategies and supports him through the Numeron and Nangong Family crises. 122 124 125 136 137
• King Harl — A longtime associate who meets with Li Yuan at Aid King's Villa and observes Youye's duels alongside him. 122 123 129
• Tang Qingsong — Fellow true King-tier Duelist; they jointly respond to threats near the boundary between the Human World and Spirit World. 153 166
• Zhao Jingqing — Duel Association associate who accompanies Li Yuan to Youye's shop regarding the Centurion Archetype. 209
• Numeronius Numeronia — Li Yuan treats the God-tier Spirit as a major threat, negotiating for his departure and affirming the Duel Association's support of Youye. 135 136

Story Role / Major Arcs

Meeting Youye

Li Yuan welcomes Youye to Aid King's Villa, revealing his identity as the Aid King and demonstrating the appearance-changing ability of a King-tier Duelist. He closely observes Youye's duel against King Harl and recognizes that Youye's knowledge exceeds conventional expectations. 122 123

Rescue-ACE Duel

Li Yuan duels Youye using Rescue-ACE cards and pushes him through careful sequencing, probing for hidden interruptions and attempting to bait out Youye's I:P Masquerena. Youye ultimately defeats him with a simplified Rescue-ACE line and the Underworld Goddess of the Closed World. 124 125

Afterward, Li Yuan openly acknowledges the information gap behind his defeat and resolves to further develop his Sinful Spoils Rescue-ACE strategy. 125

National Tournament Support

During the National Tournament, Li Yuan supplies Youye with an Apollousa engine and other cards, while also assessing the effects of Youye's victories on the remaining competitors. He predicts that many independent duelists will forfeit rather than face Youye in the Top 8. 128 129

Numeron Incident and the Nangong Family

When Numeronius Numeronia appears in the Human World, Li Yuan attempts to manage the crisis and later accepts Youye's help in persuading the Spirit to leave. In return, he pledges the Duel Association's protection and moves against the Nangong Family alongside Youye. 135 136 137

Later Activities

Li Yuan witnesses Youye's return from Heaven-tier certification with God Level Status, an event significant enough to trigger the Inspector Bureau's deity alarm. 153 Later, he joins other King-level Duelists in requesting Youye's help against Forbidden Spirits, though Youye declines because of his agreement with the Dueling Rules. 202

He continues challenging Youye in high-level matches, adjusting his deck between games to prepare unexpected counterplay. 245

Notable Quotes

“Appearance can be freely determined after reaching King-tier, and it can be changed at any time. It doesn't mean I'm truly this young.” 122

“Youye, you really surprise me.” 124