[spoiler][/spoiler]
[spoiler]
You know, "you have a vast harem but will forever look ten years old" is actually a pretty good counter to my usual reaction of "oh no you're immortal, woe is you".[/spoiler]
[spoiler]Not necessarily true when most of them display some degree of shotacon love.[/spoiler]
[spoiler]Personally its looking to be very likely the personal tragedy Chao was hoping to avert. He might come to regret things a century down the line, but the current him will push on through. Archer/Shirou scenario.
And he obviously can eventually have kids, Akamatsu won't paradox Chao out of the equation like that would he? Plus hes the descendant of the
Lifemaker, such a thing would only involve More Science! Like how he Scienced Chachamaru a soul.
So people who'd be perfectly fine with an eternal shota Negi:
-Eva, someone physically her physical age and similarly eternal? Both capable of shapechanging. Fun!
-Chachamaru, Threesome yay!
-Ayakam that goddamn shotacon.
[/spoiler]