Humans Are Cthulhu has these relationships to other tropes:

parents kids shares a parent with:
Eldritch Abomination
Humans Are Bastards
parent child
Eldritch AbominationDid You Just Romance Cthulhu
''Humanoid Abomination
''Adorable Abomination
''Animalistic Abomination
''Did You Just Punch Out Cthulhu
''Did We Just Have Tea With Cthulhu
You'll need to Get Known if you want to add or modify these relationships.