"Nope~ You have to thank me correctly… What do you say?"
"T-thank you,"
"Good girl. Now you'll need manners if you want to reconnect with civilization again," I say, stroking her hair.
Her smile only grew wider as I kissed her on the head.
…
And so, a few months passed, and we had both grown quite close… with me, of course, assuming the big sister role and Arpious easily fitting into the little sister.
She was quite obedient when it came to me, but the idea of manipulating her left as soon as she laid her head on my chest and slept peacefully next to the fireplace.
She had also taught me a few tips on fighting as I was mostly a magic swordsman but not a martial artist.
Arpious was proficient in basically every category due to her extensive skill list and an overflowing amount of knowledge.
…
Another few months passed peacefully and I began to teach her about the plane she was on.