Torque, Medusa and Words
After a brief battle with another mirror monster and Kamen Rider Torque who turns out to be Issei Ryuudou, Shiro learns that Sakura is really a master after encountering Rider/Medusa in his home with her.
Disclaimers: I own nothing
Ventara
Shiro and Len in their Kamen Rider Dragon Knight and Wing Knight forms are out battling a horde of Gelnevts and a mirror monster called Zebraskull Bronze in Ventara but they get separated in the battle. Early before at Shiro's home Len explains a traitor from Ventara is responsible for stealing the Advents Decks which led Xaviax on handing them to Earth Riders like Shinji Mato who became Kamen Rider Incisor.
That traitor was also the original user of the Kamen Rider Dragon Knight, Shiro did mention that he found the Dragon Knight Advent Deck during the day they first met which Len suspected that Xaviax gave it to him in secret but throws that aside because Shiro never met Xaviax yet. Still it's must have been there for a reason but still that's yet to be known.
"Come on!" Shiro grabs a Gelnevt as a shield to block the Zebraskull Bronze's punches but ended up hurting his noise when the back of the Gelnevt's head hits him right in his helmet face cause by the Zebraskull Bronze's punches.
Shiro pushes the Gelnevt away and dropkick the Zebraskull Bronze right in the stomach pushing it and falling on it's back. The Zebraskull Bronze gets back up and rams Shiro sending him flying and crashing into boxes.
"Man that's smart and that really hurts", Shiro commented slowing getting up but feeling pain from where he was rammed, Shiro pulls out a Advent Card and inserts it into his Dragon Gauntlet.
Final Vent
Shiro jumps up in the air and fire kicks with Drareder and defeats the Zebraskull Bronze, when Shiro was about to demorph he was suddenly hit by what felt like a cannon sending him flying again. Shiro gets up and he sees the one who hit him is another Kamen Rider known as Torque wielding a hand cannon, that hand cannon is his Shoot Vent.
"Another Earth Kamen Rider", Shiro announces then inserts another Advent Card.
Attack Vent
Shiro summons Drareder which tackles Kamen Rider Torque sending him flying and crashing into a fork lifter vehicle. Torque then demorphs believing Shiro will stop fighting him after he reveals who he is to him.
"Issei", Shiro recognizes him because him they go to the same school and demophs.
"Hey Shiro nice to see you again", Issei said as Shiro helps him up.
"I have a question for you Issei, if your a Kamen Rider from Earth like I am, why aren't you helping Len fight against Xaviax?" Shiro ask like if he is not happy to see him at all just like after discovering Shinji was Kamen Rider Incisor.
"Len is lying to you and he's the one who stole the Advent Decks and betrayed Ventara", Issei said trying to trick him but Shiro's response is pushing him.
"Sadly I know better Issei, Len is been battling Xaviax for a long time so that only reason you have the Torque Advent Deck is Xaviax is the only one who could have given it to you", Shiro said not believe a word Issei says.
Suddenly Issei avoids a slash from Saber/Mordred who wasn't present at first during the battle with the Gelnevts and the Zebraskull Bronze. Saber/Mordred then comes to Shiro's side but stands ready with her Clarent Sword. Issei realizes that fooling Shiro didn't work so he just retreats from Ventara and return to Earth or to Xaviax.
"That was Issei Ryudou my classmate at school", Shiro tells Len who was just mopping up the rest of Gelnevts before demorphing.
"I take it Xaviax gave him the Torque deck."
"He tried to trick me but I know better since Xaviax as been giving many Advent Decks to people on Earth like Shinji and now Issei."
"Will deal with Issei some other time, right now let's get back to your place", Len, Shiro and Mordred go through the mirrors to return to Earth.
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Xaviax's Lair
"Well then I shall come up with a different strategy then since Shiro does not fall for it", Xaviax disguise as a human commented to himself about his failed plan to have Shiro fooled.
XXX
Emiya Residences Earth
Shiro, Mordred and Len made it back to the Emiya residences but they are into a surprise from Sakura Mato. As soon as the trio enter the dinning room they see the purple hair and blindfolded woman sitting next to Sakura with Irisviel, Ayaka and Taiga eating.
"Rider!" Mordred announces that the purple hair woman is another servant and pulls out her Clarent Sword but Shiro karate chops her on the head to halt her.
"Don't do that Mordred", Shiro tells her.
"But Shiro, Rider is another servant", Mordred said making excuses while rubbing her head.
"But we think she isn't hostile since she's sitting next to Sakura", Len joins in the conversation.
"Senpai I never told you this but I am the master of Rider", Sakura announces and admits that she is another master for the Holy Grail War.
"Maybe you can tell us about it Sakura", Shiro and everyone present will hear her out.
XXX
"When the Holy Grail War began and masters began summoning their servants, I also summon Rider to my side. Unfortunately I didn't want any of part of the Holy Grail War nor did I want to be enemies with you Senpai, so I only ask Rider to stay nearby to protect me even when Shinji was doing cruel stuff to me. I also know that he was Kamen Rider Incisor who was unknowing working for your enemy Xaviax."
"Do you know that he was vented by me?" Len ask Sakura if she's aware of what happened to Shinji.
"Yes Len I already know, but I don't blame you. Also my grandfather Zouken Mato has been doing some cruel stuff to me too with his crest worms but sadly he never went that far because Xaviax came and killed him then burn the Mato Manor down."
End
If any of you hadn't known, Rider/Medusa's true master is Sakura Mato not Shinji which is shown in Heaven's Feel, Sakura wanted no part of Holy Grail War so Rider/Medusa was given to Shinji but still Rider/Medusa kept herself close by to protect Sakura. In the original Fate/Stay Night and in Unlimited Blade Works it's unknown if Sakura was really Rider/Medusa's true master due to having a minor role in both series and Rider/Medusa being defeated.
