Recently, my mother-in-law has been acting strange, so maybe I should consult with my childhood friend about it...

My parents disappeared and had no relatives, so the older sister next door took me in. Four years after that older sister became my stepmother. Recently, something seems off about my stepmother. The Tale of Genji, Ze〇shii—have I ever read books like that before? And when she talks to me, things feel awkwardly strained. I want to make up with her before my 18th birthday comes around. For now, let me consult with my childhood friend who's always been there for me.