How did Warriors end up with idols??? (Male reader x Multiverse, Rider saga)

New Rider

"Koi you." I used my index tell the mantis-like monster come an get me.

"Who are you?" Let's just call it mantis, pointed his greenish sword at me.

"Zi-O, Kamen Rider Zi-O." I replied with a smirk under my helmet, "Let's see if I can use those techniques again that Goku-san taught me."

Goku, his full name is Son Goku. He was my mentor and he taught me a lot of things, for example, how to protect yourself and everybody, like he saved Earth from Frieza's attacks. He even taught me how to use his techniques, for example, his famous moves Kamehameha, Instant Transmission and more. Until I got sliced on my back when I was 12, I never see him again after I got sliced in my back because I went to America for studying.

I released energy so-called "ki" and changed it into a white/transparent aura.

(Fantastic, it worked perfectly. Next speed and moves.) I thought.

"You just added an aura, doesn't mean you became stronger." Cocky Mantis said and it's ready to charge to me.

"Don't get too carried out, trouble loves to stick cocky people." I chuckled. I started to change my pose to a ready to run pose, my hip raised, and run to the back of Mantis, he looked for me because a ran too fast for a naked eye like I vanished midair.

I tapped his shoulder and he turned back and shocked that I was behind him. He took the uppercut and sent him flying a meters apart from me.

"I told you, trouble loves to stick cocky people." I said while I was walking to Mantis, "Am I right, Honoka?" Then I looked at the main entrance, Honoka and Kotori felt they were fucked up as they think they will be scolded by me, so they enter the school campus, but around 5 meters close to the school gate.

Mantis looked behind, stood up and ran to the girls. When he felt like he has found his prey, I appeared in front of him, he was shocked to see me suddenly.

"Bonjour, ya miss me?" I asked, Mantis tried to run from me and I appeared in front of him every time he ran away.

"P-please, let me go, I won't do anything like this again." Mantis begged.

I looked at his belt, he has a similar thing to keycard on his driver, I thought for a while, realized that he's a HumaGear from Kamen Rider Zero One.

"I don't show mercy to my enemies, especially the ones are going to destroy the human race."

"Since this is the first fight as Kamen Rider Zi-O, I will give you a special finish." I replied before my hands are put next to my hips and form a sphere shape.

Dragon Ball fans, you will know this word if I say the first word.

"Ka..." I said to myself with a slight voice, Mantis is freaking out right now while lying on the ground.

"Me..."

"What is he doing?" Kotori asked.

"I don't know." Honoka replied while her head is slightly tilted.

"HA..." A blue ball appeared between my hand and the whole atmosphere became blue.

"ME... The ball became bigger. Mantis tried to run but I teleported in front of him.

"HA!!!!!!!" I yelled out loud and I blasted the whole thing out with mantis went flying towards the sky.

I jumped to the sky where it was above Mantis and pressed the top 2 times the rider watch.

Cho Finish time
(超フィニッシュタイム)

I backspin kicked on Mantis's face and he landed on a flat land of grass, then I dozens of キックappeared around him, the katagana words combined into one and stick onto my right leg and did a powerful Rider Kick with my face showed, flying towards Mantis.