smashing hit 9/10 for people with suppressed desires, unfulfilled lives, chuunibyou syndromes, social awkwardness, stressful daily life or being bullied and do not have the courage or ability to make matters right in real life.
0/10 crap tier for people looking for good writing, consistent stories, hate of gary stu and mary sues, and etc etc.
story varies widely between action filled suspense page turner to self insert harry potter esque fan fiction with OC so the author can live a life he/she is incapable of achieving in real life. Plus stop faffing about with over used harems because it is inherently hard to make non linear heroines when so many are fighting for spot light and it reeks of author's complete inexperience with real relationships and how they and women in general function + fan service for the sake of fan service instead of actual character appeal.
If you must have drama based on romance please stick to the good old and much easier to design properly love triangle so you can flush out both of competitors. Is it possible for so many different women to all fall dramatically in love with a MC in cheap harem fictions due to (and this is always the same quality) the author saying they are kind/blah blah blah/etc instead of actually showing it through actions? Sure. But women that fall in love with MC after days, some say hours, of interaction and do not know the MC at all beyond casual interaction and observation are all shallow and not actual waifu material. Women that judge people they barely know on one quality are shallow because it does not have to be just looks or money since these women all fall in love at almost first sight up to a max of say a month to the degree they are willing to share one man with 5-6 other people time wise?
Therefore due to the horrible inexperience of the writer who fell into the common pitfall of sacrificing character development for harem romantic/sexual fan service all the bitches (and at this point they are all bitches due to being horribly flat one dimensional characters who do not deserve any term higher) most likely all based on anime archtypes, please for the love of all that is good and holy at least change the 500 year old loli from a vampire to like say loli spirit of righteous indignation, loli were turtle, or even loli hobbit with a drinking problem and the super hot, gentle, kind, overused staff chick trope, most beautiful girl in the class who barely knows the MC when he was a massive loser but is madly in love with him anyways to the point of her actions and disbelief in the face of logic (despite the logic not being correct due to deux ex machina saving the MC) sounds very much like a stalker to be honest. If the MC cannot be expected to be a cool bishounen with redeeming qualities before he went godmode to solve his problems why could the love interest NOT be an average looking over weight girl that wears glasses and was also a wallflower who is still gentle and nice and have a hobby in say reading warning labels and product descriptions instead of miss perfect Mary Sue who is hollow and one dimensional on the inside?
OP protagonists are FINE but please be consistent, you CANNOT just say a person's strengthen is thousands/millions of times above the common man but then he uses a gun and shit to fight instead of say breath on some one and turning him into dust? splitting the seas with one kick? flattening MOUNTAINS with a punch, leaping 90 floors instead of being confounded in a dungeon by mechanics? Surely the writer must have realized those RPG stats you see in video games would transform differently if you bring real logic to them? That 5000 str means you lift whales for fun not just to get a bigger number when you swing a sword and that 5000 def/vit/etc means your body is so dense you weight tons instead of just taking 0 damage. Overlord does it realistically when a pure mage with such high levels split trolls in one swing and hug people to death due to high strength instead of max rage hulk some how able to NOT crush spoons when eating? When you write you should not SAY some one is smart or strong or have 9000 stat but rather show it in events and actions and when you do not it creates very annoyingly inconsistent characters.