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

The sprig prince's twisted smile curved into a mocking grin with each step as his childish body bounced closer. His messy blue hair fluttered like seaweed caught in a tide while its eyes fixated on Ryuji. A deep glow flashed in the depths of his eyes.

'This monster seems to want to play.' Ryuji's eyes narrowed, his grasp tightening keeping a close gaze on the two knives that the sprig prince flipped and tossed like a juggling clown.

"He's coming!" The moment Ryuji's voice echoed in the strange forest, he rushed forward, matching the prince lunging at him. The next instant, two blades extended towards his chest. With the steel pole, Ryuji pushed out, deflecting both blades, creating a burst of sparks, before kicking the sprig's lower body.

"Guh... you are mean!" Pae'Lom whined, tossing the blades in a rapid spin while watching Ryuji with a glare.

Delinquent Versus Sprig Prince!