The first paragraph of the description text explains if you buy the free kindle version, and your Comixology account is linked to your Amazon account, it will also appear in your Comixology account. Sorry if this wasn't clear.
OP .. "free at Amazon, links to Comixology". This is free on Amazon only ... As it's showing as £2.99 on Comixology.
A Full volume for free? Great! I'll give it a go
Some nudity; If it was on TV it would be post-watershed.
Is it rude?