no because even if its the other way around, where it wasn't the mother and it's the father... to witness them having sex with someone who is two years older than you... is disturbing, let alone traumatizing, especially if you have a good relationship with your parent. i hope rosa gets a good therapist.
and i didn't even have the chance to read this yet─ (/´△`\) i looked so forward to it, but after reading the comments and doing some research, it makes me sad to know how difficult it must have been for the creator to continue working at such a toxic work environment. (not surprised, but scew them! ugh, disgusting pricks) i hope she finds peace and happiness within herself and continues to pursue her passion!