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 led the group, with Simon to his right and Erika to his left. Yumiko seemed to linger around the middle with Alicia, the two of them sometimes bickering.

"Stay away from Ryuji!" Yumiko's voice carried a hint of irritation. Her eyes narrowed at Alicia as she cracked the ice, the power of her tail creating small dents with each blow.

"Hehe, are you a jealous little fox?"

Alicia danced with elegance, avoiding any slips with her Elven grace.

From the moment they stepped onto the icy cold path, it became cramped and freezing. A series of sharp and crooked ice shards form a narrow passage filled with glistening blue and turquoise shards.

The temperature and slippery floor caused Asura and Paul to struggle with their footing.

"Y-Yumiko, I know you can't do this without me," said Alicia. "Ryuji likes us both. We should both try to be friendly!"

"Tsk! Don't breath, your breath stinks!"

Delinquent is a Trap Magnet!