
The only problem I have with this is that 5 is way to young a age lmao, like unrealistically young. Shouldved made it atleast 8 to 10.
I know five year olds and they're literally infants. Above 8 year kids are saassy af tho but nvm

That depends on their environment I think. I've known a 5 year old that was extremely social and constantly around high schoolers (her mother is a high school teacher), and her vocabulary was through the roof. She could have easily passed for an 8 or 9 year old in terms of development. Not to say that that's what happened to these two, since it doesn't look like they were socialized enough, but it could happen.

Something happened that night that made them both gain "powers"
While YeonWoo managed to master that power, which has some relation with mirrors and the house itself too, Teasing is still struggling but he'll probably eventually be able to master it too. And when he does, he'll also become kinda evil like yeon woo.
There is definitely a relationship between the house and yeon woo, when yeon woo gets mad, so does the house. If you know the movie Monster House by Pixar, it gives that vibe.
Another theory I have is that they sold their souls to kill the parent and have demonic powers with them now that would explain why people get killed idk tho.
Can I just say... THIS IS SO REALISTIC.
Communication problems in relationship happens alot.. and this one isn't even the cliché type where they are like he probably doesn't like me.
It's more about how section chief just doesn't want to deal with "a kiddy love affair" and seunghyun is having a hard time opening up and dealing with his first love. This shows the gap in their experience. Both are wrong in this and also right. This is the problemz in real life, because both need to empathize with the other.
Seunghyun was feeling guilty but when section chief dismissed his feelings as pathetic crush that probably hurt seunghyun.
Let's see who musters up the courage first.