"The reason is simple, I indulged in VR games..."
Imagine VR games having developed better swordfighting techniques than a world with actual swordfighting, honed by years of fighting experience and skill from veteran swordfighters. It's like some dude bragging about how he's played so much VR FPS games as the reason he beats actual veteran sharpshooters at real shooting. A stretch, to say the least.
Just use innate talent as a reason, that's way more believable... or that he's a god. So now he's also a talented patissier who makes sweets that can impress anyone the first time they taste it. Thankfully the segment seemed short enough. He's already getting glazed enough as it is. I don't know what him being good at making sweets was supposed to convey to the reader apart from "He's basically super good at anything, really. Nanomachines, son."
I kinda like that Elna has a bit more believable armor than Cleria, if I just ignore how her upper chest is basically unprotected to show off that cleavage, because of course it has to be done...