Synopsis: I Saved You, but I’m Not Responsible

I was the one left behind, yet I appear to have developed the most mental stability! I was commanded to act as a maid for my counterfeit counterpart, so I chose to go undercover. However, there seems to be something off with my old family. Whatever, that's not my concern! Thus, I just concentrated on my assignment... "Are you really not going to live with us?" The eldest, who once exhibited obsessive control over the fake, began to behave oddly towards me. "I never anticipated feeling such a bond and trust with someone of the opposite sex. You’re oddly too at ease." The second brother, who was on the verge of descending into darkness, managed to find his way back thanks to me. "I didn’t come here to assist them in filming their regret-filled family drama." I attempted to disregard everything and swiftly proceeded to my next mission… but why do I keep encountering individuals whose lives are utterly chaotic? Why does everyone seem to be in desperate need of saving?