Y/n wakes up on a bench with a strange suitcase next to him. He suddenly gets ttacked by strange creatures called noise. How will he survive in this strange looking world?

Random thought I got when I was reading other Kamen Rider Fan fics. I don't own Kamen Rider Gaim or Danmachi (Is It Wrong to Try to Pick Up Girls in a Dungeon?) they are owned by there respective company/authors Fallow the story of a young adventurer who takes up the task of stopping the Inves from invading the Dungeon in Orario by becoming the new Kamen Rider Gaim.

A book of upcoming stories about Kamen Rider Crossover and will vote on what crossover you want to see next. [Disclaimer] All images, videos, and music belongs to their respective owners.

(Y/N) Kurenai is the descendent of Wateru Kurenai, he been famous around the worlds known as "Bloody Prince of Violin". As he returns back home to Japan and reunited his childhood friend he is the new transfer student of Yoba Academy which is the girl school. And meeting Maho Akashi, who got inspired to making of her DJ groups and (Y/N) will acting the manager to support his groups, however (Y/N) has the secret from everyone including Rinku he has been protecting humanity from Rogue Fangire refuses peace with humans see them nothing but food. But (Y/N) must stop them and protect his love one he is Kamen rider Kiva! How will he do to DJ groups found out...... Fall in love with him?!?!?! Break the chains! (Also this is the Rider Universe of (Y/N) in canon)

In a alternate world, where Ark or Humagear was never created and the crime rate was high A Orphaned talented Young man by the name of Zero Invented an android with a AI who he named Ark as a family member for his lonely life, as time goes by he created more androids which he named Humagear to increase his self made family . He notice that the world are full of crime, so he invented weapons know as Forceriser and Attach weapon to combat against them with his family and later create a as Vigilantes group known as Metsubou Aku no Jinrai One day, while inventing a teleporting device, the invention went haywire and sended them scatter across in a new world. Now in a New world, where a organization by the name of Sangvis Ferri and Griffin and Kryuger are at war while android known as Tactical-Doll are used to fight against each other What would Zero do when the Sangvis Ferri are hunting him for the power he possessed and his family scatter away. Well he does know one thing "There's no one who can stop me. No one."