
I know it's logical for Twilight to change "mother" role but I think they forgot who will be the most affected by this ordeal. Anya and Yor already has a bond. It'll be truly cruel to separate the two. Don't they think it will affect the mission more? (Let's not forget Yor's connection to Melinda is already good plan C and they're getting close. It'll be stupid to change Yor suddenly)
Also this had been in my thought for a while but the WISE can be a little bit cruel. I know its for world peace but using a child for this mission, an adult can cope but imagine if this was an ordinary child. Anya may be a happy and energetic child but I think she has some sort of abandonment issues that's why she tries so hard to make sure the mission goes well. I think WISE has forgotten a bit of humanity and forgot the consequences like this. Even if they managed to give her to a good family, that hurt and betrayal will stay there and won't be gone for a long time. And I'm sure there will be more mental and emotional issues will be created.
This is why despite this manga being mainly comedy, if you look it another angle, it's just hurts to think about it.

I'm actually surprised that Seongjoo's(?) family line has continued until this era despite the curse that they have, you'd think ever since back then, one of those descendants will be like "the family bloodline will end here because I won't subject my children from the curse" or something. It's not like in Demon Slayer where they have a purpose for continuing.
Even if the excuse is they are gambling that one of those children will survive the curse, you don't really want to see children dying just to see that probability happening.
I don't know if I missed something or misinterpreted but how did even Seongjoo's parent able to survive the living up to 20 yr old curse if the family is almost guaranteed to die? Or is that selected who'll get cursed? Then shouldn't Seongjoo being an exception shouldn't be really a big deal? (I meant them being overprotective)

Okay so I had to go recap the story. Here is the explanation:
1. The origin of the current Seo (Uke) Clan and Kim (Seme) Clan comes from two female best friends. I will call them the Seo and Kim Matriarchs. A long time ago, Chapter 1-4 explains that the Seo Matriarch committed a crime against nature and was cursed by a vengeful ghost. This curse followed her descendants and before reaching their 20th birthday, they are like evil spirit magnets. Bad luck follows them and evil spirits make them experience accidents that can injure or cause their deaths.
2. The Kim Matriarch was a shaman with spiritual powers and the friend of the Seo Matriarch. To protect the Seo Matriarch from the curse, the two friends built identical looking houses right next to each other that could trick evil spirits and misguide them. Due to this friendship, the two clans have continued coexisting with the Kims protecting the Seos.
3. Flash forward to the present day, The Kim's have 3 children. The Seos also have 3. Kim Muheon is the oldest and basically tries to lookout for the Seo twins. However he is still young and not an official exorcist. The Seo twins are 19-20 years old. The Sister dies right before she reached that 20 year old mark where she would have escaped the curse. The Seo brother also dies similarly. But if a Seo descendant were to safely survive pass 20, they would no longer have to fear the curse.
4. Our Main Character is not under the curse. He was born on a day without any evil spirits so basically he is a really lucky child unlike his older siblings. He didn't need THAT much protection.
5. The Seo household is one of the safest places. It has centuries of seals and protections. The Seo Clan is also really successful and rich. They fund the shaman association to protect them. That's why the Kim Clan has so much influence in the association. The Seo Clan is financially backing the Kim Clan. Our Main Character is a valuable person due to being the sole heir of this mass fortune. He is a future sugar daddy for the association.
Lemme just rant here for a bit *breathes
FUCK!!!!! LET HIM WIN AGAINST HIM FUCK FUCK FUCK FUCK I'M SO OVER IT FUCK!!! LET HIS ADRENALINE TAKE OVER AND LET HIM WIN AT LEAST THIS ONCE, I'M FEELING FRUSTRATED FOR JING FUCK FUCK FUCK, AFTER THAT DISRESPECT FROM THAT BRAT AND THE SUFFERING HE WENT THROUGH! WHAT IS THIS INJUSTICE FUCK FUCK FUCK, I HATE HOW HE'S BEING REDUCED DURING THIS CHAPTER AFTER SOMETHING WEAK, AT LEAST LET HIS WILLFUL SELF COME BACK FUCK YOU FUCK!!!!
Chap 51
Finally!