The young man loses all his memory doesn't known his parents. After 10 years later, he worked the photographer living his adoptive grandfather and sister. But there is a world in danger. Tsukasa Kayoda chose our Hero as new Decade to traveled another dimension to save them. He is a Saviour or Destroyer?

Young Man Takeru Inui who is a High school student in Smart Brain High school and tries to protect people from orphnochs will he save the members in the Live house circle?

Y/N has moved to Kuoh Town with his uncle to start his new life at Kuoh Academy. Y/N has a strange dream of being King when he grows up because of that dream he was bullied and made fun of at his old school. Even with the bullying Y/N still smiled and helped his fellow students saying "That's what a good King would do for their subjects." Will Y/N's new school life turn out better? Or will it go completely crazy when a man named Woz appears calling him his king and then the red haired beauty Rias Gremory takes interest in him. (I do not own Kamen Rider Zi-O or High school DXD they are owned by their respective companies and authors. All art is owned by its original artist)

after Shinji won the Rider war because Ren Sacrificed himself to make Shinji live again. but then In the year 2021 The New Rider war has begun again a person named Kakeru Minami who is a journalist in Ore Journal with Kido Shinji and a Music creator he first have the Ryuki Deck on his hands after the Rider war was Finish and Kanzaki Shiro gave the Rider Decks on the new people who will fight in the Rider War.