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

As the dust settled from their intense duel, Ryuji and Erika found themselves in a new phase of their training. Ryuji, with a touch of melancholy, began instructing Erika on how to counter power fighters like him. In return, she shared her insights on speed fighters. Her voice tinged with respect and honey.

Alan could only watch them and feel he hit gold.

Alan's eyes sparkled with anticipation as he watched Ryuji and Erika. 'These two,' he thought, a smile tugging at his lips, 'will shake the Chosen rankings. Their journey will be the stuff of legends.'

Alan couldn't stop smiling as he thought about the future and just how much he hit the jackpot.

Ryuji could only frown slightly. He felt that this world made him need to adjust his mother's martial arts to deal with it, which caused him to become conflicted because it was his last memento from her.

'Would mother get angry?'

Delinquent And A Nice Shower