Will you give this cute tsundere love?

"If only my waifu was real. Then maybe I'd be living a happier life." Is what 29-year-old neet, Johan Smith constantly thinks. While fantasizing about an anime character named Nina, he recieves a knock on his bedroom door. To his shock, Nina stands before him. However, Johan simply believes he's hallucinating despite Nina's insistence that she's real. But what if she could become real with lots of love and care? Would you give that cute tsundere love?

[Oneshot]
This is an idea I've had bouncing around in my head for years. Funnily enough, I ended up deciding to at least write a oneshot after seeing a manga panel from one of my favorite series finally animated.
I might end up just writing one-off chapters for th...