TianXian
Okay author sama I know last time I commented I said choose both Tio and Bunny girl, HOWEVER. I have an even bigger proposal. That's right gentlemen. I am going big or going home. There's an entire harem ripe for the picking and minus Kaori and Aiko( ew) It's free game. Grab that Mermaid Mommy GRAB THAT MASOCHISTIC DRAGON LADY also grab that princess. Can't forget that handlebar bunny girl. Handlebar because yk bunny ears- Also have him adopt the mermaid child. If he doesn't then who would? Hajime can't cause he's a weak sissy. We ain't do that here chief. We don't do weakling. That's like asking to be jumped out back and robbed. No sir. Grab em and bag em like you in a Walmart on Black Friday. Then again. Fateverse... and it is full of waifus. I could give an entire essay on why you need to give him waifus from Fate. Fr Fate is like an all you can eat buffet but instead of food you got waifus. And Nader needs to be hungry. Have him starve. Make him hungry for the waifu. Dear lord me typing this has me wonder if I am mentally okay
I don't mind that he has a harem with the main arifueta girls, but I hope he doesn't get the girls from all the worlds he goes to. Because if the harem is too big, the plot will start to fall apart and the quality of the story may start to drop. But it's up to you to decide, author, and keep up the good storytelling!