this reminds me of my hikikomori route playthrough (console)
and mari in the boss rush room (after "fighting her") said-
"I know you're not the best at expressing yourself, OMORI...but I can still tell when something is on your mind."
"I hope you know that as your big sister, I will always be here for you! I'll take care of you for as long as I am here...and that means forever!"
