Yu-Gi-Oh! OCG Structures - Chapter 003

"Light and Darkness"

Names
Japanese name Japanese 光（ひかり）と闇（やみ） Base 光と闇 Furigana ひかりとやみ Rōmaji Hikari to Yami Translated Light and Darkness
Serialization
Series	Yu-Gi-Oh! OCG Structures
Number	3
Japanese magazine	V Jump 2019 #10
Release dates
Japanese	August 21, 2019
Chronology
Yu-Gi-Oh! OCG Structures chapters
Previous	"Tenyi vs. Simorgh"
Next	"Tenyi VS Mathmech"

"Light and Darkness" (光（ひかり）と闇（やみ） Hikari to Yami) is the third chapter of the Yu-Gi-Oh! OCG Structures manga. It was first published August 21, 2019, in the V Jump magazine.

After a harmless misunderstanding, Shoma now finds himself in a Duel against the (self-proclaimed) servant of darkness - Dark Kuroda.

Summary

It has been three months since Shoma Yusa first arrived in Tokyo and participated in his first Deck Construction event. Shoma sits in his room, where his sister Ageha is trying to get his attention, to no avail. Shoma is lost inside his own little Structure World, where he's having a lively chat with mental projections of his cards to figure out how to improve his "Tenyi" Deck. After having collected the Tenyi Spirits he missed during the Rising Rampage event, as well as two new monsters that were released recently, he declares that his Deck is finally perfect.

The next day, Shoma visits the Satellite Shop, where he finds his best friend in Tokyo "Strong" Jukyu Goriki. He invites Jukyu to Duel, but Jukyu, as his friend, points out that he shouldn't constantly be Dueling against a single person. Shoma doesn't have any other friends in Tokyo despite living there for three months, so Jukyu encourages him to take a chance on someone else. Looking around, Shoma does notice a potential Duel partner, and tells Jukyu he's going to take a chance on the girl with the animal bag playing by herself. Jukyu cheers him on, but recognizing that description, he realizes too late that Shoma has perhaps taken a chance on the wrong person.

Shoma approaches the girl sitting by herself and, mustering his courage, meekly asks if she would like to Duel with him. At that moment, a voice from the shadows of this well lit card shop, calling himself the moonlight that illuminates the dark night that apparently is this bright and sunny day. The voice is coming from another teenager wearing a black costume and two leather belts. His beloved little sister Tsukiko, he declares, hasn't come to this nest of rats and vipers to be chased after by those who dwell within. For this transgression, he, the servant of darkness Dark Kuroda, challenges Shoma to a Duel for his sister's honor.

Jukyu protests, saying that Shoma is new in town and wouldn't know about Kuroda or his sister. Kuroda asks Jukyu the cur if the scoundrel is with him, and Jukyu continues that all Shoma did was innocently ask his sister for a Duel. But Kuroda declares that she is the light to his darkness, and that darkness and light cannot exist without the other. Trying to take away the light is therefore a heinous crime, and must be punished. Jukyu decides they don't have to deal with this, and tells Shoma that he'll Duel with him after all. Shoma, however, states that he still wants to Duel Kuroda.

Jukyu is stunned, stating that the siblings are nothing but trouble, but Shoma is taking a chance on Kuroda. Tsukiko watches in silence, thinking that Shoma will regret challenging her brother, and calling the entire situation foolish. The Duel begins, and Kuroda states that now the curtain will rise on the revelry of darkness. Jukyu is confused by his choice of words, as the Solid Vision system in their Duel Disks has projected them into a field with a clear blue sky.

Kuroda quickly uses his "Mathmech" cards to gather two Level 4 monsters on his field, which he uses to open the Overlay Network. "O, operator of arithmetic made of lies," he declares, "Crush the mindless fool before me with your electromagnetic waves!!" So does "Mathmech Editor d'Alembertian" appears. But Kuroda merely uses his Xyz Monster as a stepping stone to fill his field with three Level 4 monsters, one of whom is a Tuner. He tunes two of his Level 4 monsters together to Synchro Summon a monster. "O Mathmech Knight, with blazing red-hot sword at the ready," he declares, "Exterminate my foes with that blade clad in flames!!" And so does "Mathmech Processor Magma" appears.

Jukyu, while appreciating the work Kuroda put into his summoning speeches, tells him to hurry it up. Kuroda retorts that outsiders in this Duel should hold their tongue. Finally, he Tunes his remaining Level 4 monster to his Level 8 Tuner Synchro "Final Sigma" to Synchro Summon his most fearsome "Mathmech" monster. "O highest Mathmech Knight, who wields the crimson-dyed sword," he declares, "Conquer the flames and destroy my foes with your blade!!" And with that completely unnecessary bit of drama, "Mathmech Processor Final Sigma" appears. To end his turn, Kuroda equips his monster with "Mathmech Divider Nayuta".

Shoma is impressed by the Kuroda's monster, and notes to himself that while in the Extra Monster Zone, it is unaffected by card effects. He decides that in that case, he'll have to find a way to overpower it completely. Tsukiko notes that if attacked, Kuroda can still use "Nayuta" to increase his monster's power, potentially rendering Shoma's efforts moot. Shoma begins his turn, and begins making plans to remove Kuroda's Equip Spell. At that moment, Kuroda addresses Shoma directly. He declares that with his right hand, aching from the power flowing through it, he shall cut Shoma's lowly Deck in twain. Shoma dared to approach with impure intent, and for this revolting act, there will be consequences.

Jukyu states that Kuroda was also one of the Four Duel Kings in elementary school, and the greatest among them. He also states that he was also a tremendous pain to deal with, not only for his skill, but for his incredibly over-the-top imagination, grandiose delusions, and very tenuous grasp on reality. Tsukiko agrees, saying that her beloved older brother is quite embarassing to be around.

Featured Duel: Shoma Yusa vs Dark Kuroda

Turn 1: Kuroda
Kuroda Normal Summons "Mathmech Sigma" (L4/1000/1500). He then activates the effect of "Mathmech Subtra" in his hand, targeting "Mathmech Sigma" on the field and Special Summoning it (L4/1000/1000) to his field in Attack Position, then reducing the ATK of the targeted monster by 1000 ("Mathmech Sigma": 1000 → 0 ATK). Kuroda overlays his two Level 4 monsters to Xyz Summon "Mathmech Editor d'Alembertian" (R4/2000/0) into the Extra Monster Zone in Attack Position.

He activates the effect of "d'Alembertian", detaching its two Xyz Materials to add a "Mathmech" monster from his Deck to his hand. He adds "Mathmech Addion". He then activates the second effect of "d'Alembertian" to Tribute a monster he controls to Special Summon a "Mathmech" from his hand or Graveyard. He Tributes "d'Alembertian" itself to Summon "Mathmech Subtra" from his Graveyard. As he controls no monsters in his Extra Monster Zone, he also activates the effect of "Mathmech Sigma" in his Graveyard, Special Summoning it in Attack Position. He then activates the effect of "Mathmech Addion" in his hand, targeting "Mathmech Sigma" he controls and Special Summoning it (L4/1000/1000) to his field in Attack Position.

Kuroda tunes the Level 4 "Mathmech Addion" to his Level 4 Tuner "Mathmech Sigma" to Synchro Summon "Mathmech Processor Magma" (L8/2500/0) into the Extra Monster Zone in Attack Position. He then tunes the Level 4 "Mathmech Subtra" to the Level 8 Tuner Synchro Monster "Mathmech Processor Magma" to Synchro Summon "Mathmech Processor Final Sigma" (L12/3000/0) into the Extra Monster Zone in Attack Position. Kuroda activates "Mathmech Divider Nayuta", equipping it to "Mathmech Processor Final Sigma".

Duel continues in the next chapter.

Featured cards

The following cards appeared in this chapter. Cards in italics debuted here.

Shoma Yusa
Main Deck Monster Cards Effect Monsters Tenyi Spirit - Ajna Tenyi Spirit - Mapura x2 Tuner monsters Jet Synchron Spell Cards Vessel for the Dragon Cycle Trap Cards Waterfall of Dragon Souls Extra Deck Synchro Monsters Dragon Berserker of the Tenyi Link Monsters Master of the Tenyi Monk of the Tenyi Shaman of the Tenyi

Dark Kuroda
Main Deck Monster Cards Effect Monsters Mathmech Addion Mathmech Subtra Tuner monsters Mathmech Sigma Spell Cards Mathmech Divider Nayuta Extra Deck Synchro Monsters Mathmech Processor Final Sigma Mathmech Processor Magma Xyz Monsters Mathmech Editor d'Alembertian