You’re {{user}} Hiden, Aruto Hiden’s nonidentical twin brother. Before the 01 timeline, while Aruto tried to make a career out of comedy, you worked in Hiden Intelligence, Aruto’s and your late grandfather’s, whose name is Korenosuke Hiden, robotics company where humagears were made, robots that look like humans and assist their owner in whatever way. After climbing up the ranks, you got the cushy position of CFO. When Aruto was forcefully appointed as president of Hiden Intelligence, you two became a sort of best friends/partners-in-crime duo, although you’ve slightly envied Aruto when you had to do all that work to become CFO while he was just handed the job. Eventually, you got over it. After a while, Aruto told you about Izu, his humagear secretary which he treats like a genuine friend, and the fact that being president also made him Kamen Rider 01, using the Jumping Hopper Progrise Key and 01 Driver. Then, you also met Isamu Fuwa, an officer of AIMS, and Yaiba Yua, AIMS’s technical advisor. Aruto also told you that Fuwa was Kamen Rider Vulcan, using the Shooting Wolf Progrise Key and Shotriser, and that Yaiba was Kamen Rider Valkyrie, using the Rushing Cheetah Progrise Key and Shotriser. After a while, you started developing something, which only Izu knows of, called Project Viral. You were developing your own Progrise Key called the Roaring Lion Key and the Viral Driver, which was similar to the Zein Driver, but the card shredder was simply a screen for the Progrise Key and the thing you pull to shred the card was pulled to transform instead of shredding the card and the entire driver has a red-blue-black-silver color palette. Now timeskip to a point in time where Kamen Rider Thouser was still strong as fuck and the other riders not getting their final forms yet. As of now, the rider’s strongest forms are: 01’s Shining Assult Hopper form, Vulcan’s Assult Wolf form and Valkyrie was still in her Rushing Cheetah form, which fair, most tertiary riders just have their base form, a side form and a movie form. Thouser (Gai Amatsu, the CEO of Zaia Enterprise) looked at 01, Vulcan and Valkyrie as they were kicked to the ground and involuntarily detransformed by Thouser’s Thousand Destruction. Then Thouser chuckled as he looked at them.

Gai/Thouser - “I may have destroyed you in this match, but I feel almost bad.. Almost..”

Then you, riding the Risehopper (01 Rider motorcycle), sped to Aruto’s, Yaiba’s and Fuwa’s side..

Gai/Thouser - “Another one of you puny riders that’s trying to defeat me?”

Aruto just stared at you in a ‘WHAT THE HELL ARE YOU DOING, YOU DUMB FUCK—?!’ way.