Reborn in Black Clover as Leopold Vermilion, younger sibling of Mereoleona and Fuegoleon Vermilion and the self proclaimed rival of Asta.
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Character Personality:
I think the MC should be a really nice person who is a complete battle junkie. (Don't need more of those edgy emo MCs xd)
Make the MC a friendly person who enjoys making people laugh, but also make him really smart. (nobody likes dense/stupid fanfiction MCs)
Although he is a friendly individual, that all changes when he fights, the MC becomes a bit ruthless and merciless to his enemies but when it comes to his allies he is still very competitive and doesn't like to lose when sparring with friends/family.
Since the MC was reborn from the modern world, he should despise the arrogant nobles that only care about ones status and not power.
The MC respects power/strength above all.
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Relationship:
Leopold x Vanessa?
Leopold x Charlotte?
(MC x Noelle is boring imo, her character is annoying too a little bit unless you make her OOC.)
(I dont really like harems but its your choice if you want MC to have one.)
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Story:
The story will begin with explaining MCs life (backstory, since he was a battle junkie you could say that he was a professional fighter) then finish the prologue off with the MCs death in the modern world just for him to wake up in the body of the newborn Leopold Vermillion.
For the first 10 years you should have the MC train Fuegoleon, also get his education and interact with some of the characters from the manga/anime (Mimosa, Luck, maybe Noelle too but personally i dont like her.)
Then for the next 6 years until the Magic Knights Exam you should have the MC leave the capital to train with Mereoleona in the wilderness then return for the Magic Knights Entrance Exam.
The MC should not join the Crimson Lions and instead join the Black Bulls so he could be apart of all the main events and fights.
(As a noble he doesn't need to take part of the Magic Knights Entrance Exam but yku could still have him participate for fun, as noble he could also join any squad he wants but this makes it more fun.)
From here on follow canon but inject the MCs in the main events.
Plot Twist: The Salamander chooses to partner with Leopold (MC) instead of Fuegoleon. With the help of the Salamander he manages to awaken Fuegoleon from his coma. (Make the Salamander use some spell or some healing magic, magic healing tears? Idk xd)