After the defeat of Evolto, Kamen Rider Build and Cross-Z, Akira Kiryu and Ryuken Geki lived in the fused world. That is until Killabus the brother of Evolto erased the memories of Akira and the only thing he has is a rabbit. It's up to Ryu to help...
How did this happen? Starting off with Akira and Issei preparing to fight. Akira didn't wanted to but Issei made him which already that's strike one. The reason was just dumb it was due to the camel incident, strike two and strike three because Akira will defeat him in a few seconds
Issei: "You better get ready!" Then he went into his balance breaker form
Akira: He walks towards him slowly with an empty Fullbottle "Yeah yeah."
Issei: "Wait what are-?" Without any reaction Issei's armor disappears as Akira's empty Fullbottle became two new Fullbottles
Akira: "Now then. Shall we begin the experiment?" He shakes the bottles twist the caps and inserts them onto his driver
Red Dragon! Gauntlet! Best match!
Then he twist the crank
Are you ready!
Akira: "Henshin."
Welsh Dragon Balance Breaker!
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Issei was shocked about this but Akira he really wasn't impressed mostly due to him used to taken other forms of a particular rider
Akira: "So Issei I'll give you the chance to surrender or I'll go full hammer on your sorry life and then you will apologize for starting this fight in the first place."
Issei: "..." Then he got on his knees "I'm sorry for ever trying to pick a fight with you oh greatly superior genius!"
Akira: "Dam right." Then he removes the bottles from his driver as his armor disappears "Here since I'm a merciful genius." Then he tosses Issei the two bottles "Just shake it on yourself and you'll be able to regain the ability to use your balance breaker."
