I claim Sanae Kochiya from Touhou Project as my waifu.
She is shallow, thoughtless, selfish, and can be childish at times. She is pretty much the
exact opposite from my actual preferences. So why I still want to claim her as my waifu ?
Despite her negative traits. She is very loyal to her Gods, and "loyalty" is not something you can buy at market.
Every people have their own flaws. Perfect people are just boring.
Sanae may have "too" many flaws. But she just trying to be herself, she is ready to help whenever she is needed, she can be forceful to earn what she desired, she has the will to learn, she has the guts to defend what she believed, and she is open-minded for a change.
Such qualities are admirable and rare, even in 2D world.
With that being said, my love for her shall not be doubted.