Even though Seon Ju isn't the sharpest, So U will see through their schemes.
SJ is certainly not the brightest flame in the fire but i think she is slowly starting to wise up, But i would be surprised if she figured it out it's too soon for her so it will be SU who figures it out and counteracts it.
Thats going to be good but Chu a will come up with something to try and drop little sister in the sh#t again.
Oh for sure she will and penniless all being well, and little sister is my favorite atm as well as the 3 kids i think they are doing a good job for their ages.
Wait for it, it will be released by the end of the year :D