Sword Art Online

[Ryllharu]

Yui would be fine if she wasn't treated as a daughter by both of them instantly. That whole arc in Aincrad is retarded. There's no lead-up, no development, nothing. It's just, "Nice to meet you. We'll treat you as a daughter, done." It wouldn't be as bad if they built up to it across 3-5 episodes, instead of 1.5 episodes.

Her parts in Alfhiem Online are some of the better parts. She's a digital fairy after all. There, she acts like it, and is and treated as such. Correspondingly, her scenes and dialog are good. It would legitimately be better if she was not treated as a child, but more like an "overly clingy friend" or "sister". Basically what Suguha sees her as before she learns the truth from Kirito off-screen in the real world.

[Kraco]

Yui would be fine if she wasn't treated as a daughter by both of them instantly. That whole arc in Aincrad is retarded. There's no lead-up, no development, nothing. It's just, "Nice to meet you. We'll treat you as a daughter, done." It wouldn't be as bad if they built up to it across 3-5 episodes, instead of 1.5 episodes.

Why not? They were all fluffy and high after their virtual marriage and devirginization. Throw in a kid they can adopt and their virtual family will be more complete than they dreamed of.

I think Yui was necessary to even the odds against a developer/admin. Beating such people is unlikely, so an exploit accidentally left in is sorely needed.