I am a person who is generally into novel with a awesome protagonist with either a perfect harem or a great love intrest.I don't have any preferences even if it is a martial arts or a fantasy genre novel
Theres only 2 novel here where I thought it have badass MC.. King of the Battlefield . Sovereign of Judgement .
Way of the Devil, badass guaranteed but not romance. https://www.novelupdates.com/series/way-of-the-devil/
MGA, Chu Feng is really really REALLY badass. JK, at least from the novels I've read in NU I wouldn't call any of the MCs badass. They have their moments, but they aren't badass most of the time.
Ok, the snarky answer above aside, here's a list of otherwise decent or interesting stories that also have acceptable levels of romance and badass (for certain definitions)characters. 10 nen goshi no HikiNEET - Kotaru. (she's a dog, though) Arifureta's MC is badass, and has one of the best badass character defining moments I've ever come across, at least until the anal-masochist dragon shows up. Then you should drop it like a slimy buttplug. Assissin Farmer has a badass tsundere love interest, but it's also a lovely heartwarming slice of life story. Chronicles of Primordial Wars has a damn fine protagonist. Badass, but not OP or psycho. Common Sense of Dukes Daughter - both SoL and badass female MC (with a pretty nice ass, apparently, but that's not what you meant, I think) Unfortunatly, the Asian Hobbyist's webpage is pretty hostile. Conquest has Shaar Thunder - a true badass, thick-skulled, conan-archtype protag. The FL is butt ugly, though. Dimensional Sovereign meets both criteria - a badass OP MC, and a cooperative harem. It's even completed. Divine Doctor, Daughter of the First Wife - DO NOT CROSS THE MC OR ML. OH GOD JUST DONT. Doulou Dalu - Nuf Said. Everyone Else is a Returnee. Yep, MC gets seriously badass, and the harem is overjoyed, even though you'll probably be rooting for a monogamous ending. Evolution Theory of the Hunter was seriously good, but has been abandoned by translators. Genius Doctor, Black Belly Miss - Badass MC (check), happy harem (?sorta?) Hail the King - "To be crowned King by the hands of my defeated enemies!" - ohhh, yeah. That's badass enough to give you chills. Histories Strongest Senior Disciple - well, yeah, more or less. Jashin Average / Evil God Average - Very accidental badass MC. No harem to speak of. Mahouka Koukou no Rettousei - emotionless badass MC. Sis-con. Make My Abilities Average - . . . an accidental badass mc? she's just a normal girl, though. Release that Witch - smart-mortal badass. Praise the Orc - an Orc badass. I don't want to see any romance, there. Sovereign of the Three Realms - yeah, divine reincarnation badass. Sucky romance (misunderstandings) though. Stunning Edge - female divine reincarnation badass. The Human Emperor - badass mortal reincarnated transmigrator. Dropped though. The Tutorial Is Too Hard - very badass, slightly silly. Virtual World Peerless White Emperor - hilariously obsfucatingly silly badass. DO NOT let the MC play with explosives. Or traps. Or cooking. Ok, those were the good ones. This next list is the heap of ass-bad novels with badass OP MC's that infest every mediocre chinese fantasy webnovel. Yes, you'll find your badassery, but you'll also be killing braincells. And these are the decent ones. YMMV. The Nine Cauldrons, The Charm of Soul Pets, The Godsfall Chronicles, Star Rank Hunter, Swallowed Star, Stealing The Heavens, Skyfire Avenue, Soaring of Galaxia, Rise of Humanity, Otherworldly Evil Monarch, Nine Heavenly Thunder Manual, Night Ranger, Law of the Devil, King of Gods, Immortal and Martial Dual Cultivation, I Shall Seal the Heavens, I am the Monarch, God Of Slaughter, Godly Model Creator, Forty Millenniums of Cultivation, Galactic Dark Net, Demons Diary Castle of Black Iron
My Wife is a Beautiful CEO - The title may be misleading but the MC is badass Returning from the Immortal World
Against the god Reincarnator (no romance but no1 bad ass char in my list) The kings avatar(no romance..i think) Kings of god (romance is ok) My Wife is a Beautiful CEO Battle Through the Heavens Main Character Hides His Strength(no romance ) Emperor of Solo Play (again no romance ..i think) They are all badass in their own way ..