Dungeon Overlord: Monster Girl Harem! - Chapter 2: Summon an Aide?

Chen Han was a genius and hard-working boy. When he defeated a young master of a prominent family, he was attacked in retaliation. His dantian was shattered and he fell into Jianyuan. He was reshaped by a mysterious entity with the true spirit of his life, and he cultivated the techniques of the Peerless Heart and The Emperor.

With peerless mentality and supreme combat skills, he fought fiercely in the world, swept the six lower realms, and galloped across the three higher realms.

When countless treasures of heaven and earth, divine weapons and sharp weapons are in the bag, when countless beautiful women return to the harem, and when countless strong men are completely annihilated, this vast world would be under my feet!

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

The idiot Long Gen pretends to be a pig and eats a tiger, takes advantage of the girls in the village, travels across the countryside and forests, monopolizes the beauty and coquettishness, and achieves the legend of “Dragon Gen”. There is a widow in front of the door leaning on the door to watch, and a sister-in-law next door looking through the screen window… This book is determined to be a stallion, with the goal of pushing down and being pushed.

- Description from novelbuddy

Ethan, a high school student that died alongside his bully transmigrated into another world.Ethan awakened in a parallel world, one where supernatural talents determined your worth, and the talentless serve as expendable cannon fodder.Born talentless in this new world, Ethan finds himself assigned as cannon fodder against the monster hordes that threaten humanity.But his death in the previous world seemed to have granted him a supreme Talent.Follow the story of Ethan as he awakens the strongest talent and strives to become the world's Strongest.