Hey does anyone know about this doujin

[OrfaZerfum]

So it's about a dude that drugs his kids and grandkids to sleep and fucks em, he grows old and then he posses the body of his son in law and continues the shit he does.
Honestly don't even know if this was a fever dream of a doujin cuz I think I saw this way back in the peak of lockdown, and I honestly just want to confirm like yeah this shit exist lmao.

 

[morphnet]

https://f95zone.to/threads/please-use-our-forum-correctly.257978/

also with the mention of grandkids make sure this doesn't violate rule 7