Reasonable and Proper

I went to play a guest role for fun, but somehow ended up becoming the character for real!

Though I lost the wealth and conveniences of modern life, things could have turned out much worse. My only family member came along with me, and they're from an official's household, so I've got a pretty good starting point!

Except...

Is there something a little off about my family?

My stepmother is always forcing herself to stay upright, gasping for breath with every step.

My stepsister is breathtakingly beautiful, but dripping with fake sweetness.

My bedridden, bloodless cousin is so famous for being a walking medicine jar that he can barely get out of bed, and we're not even related by blood.

After years of relying on each other, one sudden journey through time and space turned my relative from my uncle into my father!