TheDragonSlayer

“Ah... foolish hero, come to slay me... Heed my command and kneel!”

The Demon Queen offered Ryuji half the world—however, he desired everything.  
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Ryuji Vincenzo, a misunderstood son of a female gangster, beats his teacher upon seeing him commit a crime against his friend’s girlfriend. Yet because of his looks, the school forces him to change schools instead of expelling him. 

However, on his first day of changing schools, his class gets summoned to another world. 

He gains a useful class, but the calamity star chooses him. The star signals future tragedy or conflict in the new world. Despite this, the king, although asking them to fight against the demon king, doesn’t threaten them and is quite likeable.

Thankfully, the students are all given the power to fight, and this new life looks up for Ryuji, who desires to make friends and find himself a girlfriend.

Ryuji himself is quite a handsome man because of his father, but his mother's strict rules make him a strange person who wants to connect with people. 

This leads him to help those who cannot fight who would die otherwise. He wields a massive axe and uses his talents to support the weak members of his class. 
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BATTLE JUNKIE PROTAGONIST
LEVEL SYSTEM
WEAK -> STRONG
HAREM
BEAST GIRLS
DEMI GIRLS
MONSTER GIRLS
MOB GIRLS
NO YURI 
NO NTR
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This novel is a repost, as I became ill when writing the previous version and fell behind too much.

Extra Harem: S-Rank Berserker in Another World

Ryuji sat on a soft couch for one person. The satin cover felt silky and smooth to the touch while he sipped a fruity cocktail from a crystal glass. In the past, he never had much use for alcohol or even regular drinking, but since coming to this world, he desired to try things he ruled out because of his previous self.

'This tastes quite good. The citrus fruits are light compared to the sweet flavours that follow it up.'

He watched Erika and Yumiko in their beautiful outfits, sitting together on the opposite side of the room, speaking with several maids. What Ryuji liked about Alan was that the party was one for everyone. Not just him and the girls but for the maids as well, allowing them to change clothes and join them.

Ryuji noticed Alan seemed to be enamoured with the head maid, who looked old enough to be his mother. Still, she appeared to be smiling a lot around the young man and kept getting drinks and food for him.

Ryuji - Dancing with two hearts