Silver Gaiden

Silver Gaiden (銀外伝) is an online OEL manga series co-created by Alex Guy and Harry Harrup. It is a spin-off of the acclaimed series, Silver Days, and consists of side-stories in the Silver Days universe, all with their own exclusive story and antagonist.

The series initially began with Game of Darkness, which served as an addition to the Ocean Blue Saga from the original series. With the release of the second story, however, the Silver Gaiden series began to take its own course with original stories not relevant to the main series.

Overview
Each story has its own original plot and antagonist that takes place during Silver Days (excluding Wrath of the Dragon Soul). Every story has a different Japanese title and an official English title. According to "Alex Guy", they are all canon and part of the official storyline. Most of the stories draw heavy inspiration from the Dragon Ball Z non-canon movies.

Story 1: Game of Darkness
Takes place one month after the Kingdom Island Arc. Japanese title: "Link into Action...The Most Dangerous Game! (アクションへのリンク...最も危険なゲーム！) Antagonist(s)
 * IGNIS - An artificial intelligence hidden within the VRtua.Net System that was able to manifest itself into the real world, and create her own copy of the system.

Story 2: The World's Might
Takes place two months after the Final Exam Arc. Japanese title: "The World's Power! Who Can Win if Silver Can't Win?" (世界の力！シルバーが勝てない場合, 誰が勝つことができますか？) Antagonist(s)
 * Tamega - An extremely malicious parasite from outer space, who arrives on Earth to seek, infect, and control the world's strongest being on the planet to reproduce and kill those inferior.

Story 3: Attack of the Shadow Reavers
Takes place nine months after the Frost Arc. Japanese title: "Attack From the Shadows! Revenge From the Shadows!" (影からの攻撃！影からの復讐！) Antagonist(s)
 * Rose - A deformed space pirate of unknown origins, who was formerly bound in the center of the universe that escaped for revenge.
 * Tokoyami, Midnight, Kage, Slate - Rose's team, who were sealed alongside her.

Story 4: Frozin Solid
Takes place one and a half years after the Frost Arc. Japanese title: "Android Assault! The Frozen Battles!!" (アンドロイドアサルト！ 凍てつく戦い!!) Antagonist(s)
 * Frozin - An android created by Dr. Negative to be the perfect assassin, previously frozen in suspended animation.
 * Cooler, Chilled, Icycle - Three other androids created for the sole purpose of helping Frozin.

Story 5: Victory Mission
Takes place three months after the X Games Arc. Japanese title: "The Victory Mission! The Ultimate Decisive Battle on the Earth!" (勝利の使命！地球上での究極の決定的な戦い！) Antagonist(s)
 * Bakuro Fujiwara - The first main antagonist of the Silver Days manga, now an artificial intelligence that is an assimilation of technology, able to materialize using negative energy.
 * Dr. Manyack - A mad scientist hellbent on the annihilation of humankind, and other mortals alike.

Story 6: Interstellar
Takes place nine months after the X Games Arc. Japanese title: "Interstellar Battle! I Will Be the Winner!" (星間バトル! 私が勝者になります！) Antagonist(s)
 * Yugi Tatsuki - A rogue super soldier created by the Evolutionary, long before the likes of Silver.

Story 7: Revenge of the Highest Institute
Takes place one month after the Legendary Tournament Arc. Japanese title: "Death Awaits... The Most Violent and Fierce Battle!!" (死が待っている...最も暴力的で激しい戦い！！) Antagonist(s)
 * Brianne - The first clone ever created by the Dark Celestial, hidden in suspended animation until the death of her creator.
 * Red, Yellow, Green, Blue, Scarlet, Amber, Citron, Forest, Violet, Indigo - Brianne's team, out for revenge against Team Silver.

Story 8: Earth Bound
Takes place two years after the GENEX Arc. Japanese title: "Mother Earth" (母なる大地) Antagonist(s)
 * Siege - A mindless monolith who was freed from his containment and is only able to cause destruction.
 * Commension II - The offspring of a parasitic wizard that commands Siege as his master.

Story 9: Wrath of the Dragon Soul
Takes place four years after the Nova Arc. Japanese title: "Dragon Soul! Wrath of the Devil Zone!" (ドラゴンソウル！ 悪魔ゾーンの怒り！) Antagonist(s)
 * Azazel - A demon that broke free from the Demon Zone, hellbent on unleashing the power of the Dragon Soul.
 * Lunez, Domingo, Reign - Azazel's minions whose life forces are linked to Azazel himself.