System: Is it wrong to explore and pick up girls in the omniverse?

Just so you know this is a Fanfic and I don't own any of the original.
And the picture portrayed in the cover is Bella, she is Bell's female counterpart and she isn't the Argonauts reincarnation.
Mc will travel from world to world without any prior main goal in mind except for strengthening his rush foundation.
However, during his aimless travel he had discovered secrets that should have been left unsaid and unknown. He got dragged into events that he could have just avoided but due to his battle maniac of a personality why would he avoid such encounters.
I plan on having a super massive harem but my mc is not a pussy magnet cuz that's shit as hell.
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Mc was once a hero back on the original Earth that had fallen into an apocalypse and he died due to poison from an injury, next is the typical he meets a gorgeous Goddess.
His Karma was so big that he could wish for anything but our mc decided to act carefree and do an experiment.
He chose Rimuru abilities after he evolved into a Ultimate Slime and the !Chaos! in !Nanatsu no Taizai! He wanted to create !Sunshine! but also wanted to be able to recreate the power of demons and fairies so he chose the !Chaos! the being one that created the world of Seven Deadly Sins.
His other wish is a system that will allow him to travel between realities without much of a inhibition.

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The story starts on Danmachi 10 years before the cannon but MC will be traveling to different worlds also MC wouldn't stay long in Danmachi.
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I might kill the MC a couple of times for the plot.
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Mc is basically me, a male version of me if I must say.
He will sometimes behave like a tsundere, careless, airhead, carefree and narcissist.
He is also domineering, cruel, unforgiving, edgy, battle maniac, always curious and harsh.
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I don't like super kind and naïve boys, I am more into bad boys.
Don't push your preference to me.
The ONLY difference between me and the MC of this FANFIC story is the name Obviously, genius - I am an idiot and bad at studying, beauty - I am neither a heavenly beauty nor a model only a little bit above average, he's a boy while I'm a girl, and lastly he is a fictional character while I'm a real person, duh obviously.
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Changes:
Bell's (male) -> Bella (female)
Ais Wallenstein is a head pat slut, though she’s still a airheaded.
Lefiya is Lefiya is Yuri nothing change.
Artemis is a hidden pervert.
Loki has boobs (D Cup)
Bete Loga is submissive/Bete is Loraine’s (black fist) boyfriend.
Hestia is a ancient legal loli, her boobs degraded into a mere B Cup
Reveria is a hidden masochist who love getting electrocuted.
Freya is a kind and caring virgin goddess of beauty, she’s still a pervert a hidden one at that. Her Familia is still the strongest in the Orario, also her Familia while still Fanatic towards her they aren’t that bad here.
Eina Tulle is a hidden pervert.
Mama Mia/Mia Grand is a perfect Bishōjo.
Anya is a bit of a muscular and brut, she’s still a beauty though.
Fels is a beautiful witch in love with Uranus’s muscles.
Uranus has well built bulky muscles, his personality did not change.
Ganesha is Ganesha nothing can be done about him.
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*Spoiler*
Villains that mc finds worthy to fight will receive plot armors and boost.
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You never learn.
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403160
( ͡° ͜ʖ ͡°)
Legends know how to use this secret code.