Someone please tell me what happened here, in a simple way like even monkey can understand it. I mean why in the last page the real onee chan still at young version
brother and sister horny, but parents no like, brother and sister split up, brother and sister kill parents (separate occasions), Brother and sister gets PTSD and forget what they did, fast forward brother has new sister, old sister seeks out brother, Upon seeking brother older sister realizes brother killed...mother? (he's just like me fr ig) old sister decides they both should do
therapy kill themselves for killing parent (ghost therapy), brother and old sister does ghost therapy together and both realizes what they did and decide to not unalive (Parent's death was greatly exaggerated due to PTSD). old sister realizes brother too horny and new sister is there so old sister has to leave.
TLDR: a convoluted ass get over grief plot that was filled with more horniness than meaning.