-Meets a cute loli, first thing he does is considers whether she's more valuable to him alive or dead -Slaughters his fiancee (whom he got close in the first place for benefits) without bathing an eye to then plunder her clans resources for the sake of profits.

Now lets discuss why I only rated Reverend Insanity/Master Of Gu/Daoist Gu 3 stars despite my high praise. Like most other novels the MC has almost no personality, this issue is also addressed briefly, where our MC even says he himself feels like he lost his humanity. Fang Yuan pursues the impossible dream, as he describes, of Eternal Life. Where and which he claims things such as fame, lust, kinship, wealth and so on are just a means. That sounds really cool and all but what will you do once you achieve it? What's the point of Eternal Life if you can't enjoy it? For me this is the biggest plot hole so far and has yet to be addressed and is probably the reason as to why the author named this novel Reverend Insanity.

Another unavoidable outcome is the novel starts to degrade heavily, especially during the Zombie Arc (I almost quit reading during this phase). Due to the nature of being a Gu Immortal they are all extraordinary people, because of this, scheming starts to slowly become redundant, which is unavoidable I understand, seeing as there are far too many possibilities that exist and would only end up becoming another Berserk. People start becoming very 2D, characters such as Bai Ning Bing and Hei Lou Lan, the two mindless physiques, end up becoming mindless s*aves, especially Bye Dingaling, honestly so sick of this dude with nothing to his name except his special physique and being a s*ave for the right people acting so arrogant for. You'd think he'd feel humbled by someone like Fang Yuan who worked his way up from nothing to become, very possibly, the next venerable. Hell, I wouldn't be surprised if Bye Dingaling could theoretically become a river lord.

Another thing that was passable at first but started to feel forced was the setbacks, I understand it was Heaven's will and luck path but there's only so much a man can take, the setbacks felt very forced and many times felt like the enemies had plot armour. I'm glad the author realized this and started to wrap it up by creating Heaven's will and luck path, because it was just not a pleasant experiences having the author constantly preaching and comforting me.

Continuing from earlier, Fang Yuan, like most novels' MC, this guy is a robot. I understand that all the character development was done 500 years earlier but seriously one of the things I enjoy most are the little snippets of his life experiences before reincarnation. I pray to the door of life and death every night to bring Fang Yuan's personality back. I theorize that the reason for this is because of the Spring & Autumn Cicada is only rank 6 and can only bring Fang Yuan's will, i.e. His purpose, back in time. Though personally speaking Fang Yuan's character was quite an inspiration to me and to some degree I believe everyone should strive to be like him. This concludes my rambling hope you enjoyed.

When all sh*ts going wrong for him. When he is marked for death by literally the entire world. When he suffers defeats more often than victory. And when you learn his past, his unrequited love, and what he has gone through in his previous life, you really can't help but to root for this guy. His tenacity and perseverance doesn't came for no reason or some BS cliches (protecting/revenging clan/family bla bla), but towards his selfish pursuit of eternal life. No things or any others can sway his mind.

later he turns to rank A at the end of volume 1

I really thought Bai Ning Ning would die for the third time! Yes, he died twice. First is in MC's first life then the second time when he sacrificed himself for the MC to live. I thought he will die the third time when the MC asked him to die again.

But this is almost opposite of the above paragraph as MC only changes himself and maintain it as a secret without bullshitting.

13 super forces per region. Weakest super forces have a peak rank 7 with a gu house maybe. Average immortals/super force is implied by the author to be 10-20, bullshit. The way the organizations work clearly shows that there are roughly 5 or more rank 7s per force. Conservatively, let's say 30-40 immortals/super force. That's 400 righteous path immortals per region, add to that lone immortals who match the righteous numbers and then demonic path immortals gives something a little north of 1000. Central Continent is just another story altogether with the old geezers in the graveyard, making rank eights pop out every few seconds. There are also the 10 great sects with rank 8s each. Not to mention the Grotto Heavens who all have rank 8s as well. There should at least be 50-100 rank 6/7 for every rank 8 master and I can easily list 30 rank 8s off the top of my head. Rather than saying there are too many rank 8s, I'm saying there were too few mentioned in the beginning of the story (mainly cuz the later chapters are really fun).