I Shaved. Then I Brought a High School Girl Home. - Volume 1, Chapter 13: Business Trip

Are you humiliated by being attacked?

Are you sorrowful to be a stepping stone?

As a cannon fodder hanging in two episodes, are you unwilling?

Don’t worry, I am here!

As the only system supplier of All Heavens and Myriad Realms System Shop, I can make a variety of portable systems for you, and let you reach the peak of your life!

Boy, it’s time to raise your eyebrows!

Boy, it’s time to counter-attack!

- Description from Novelupdates

Yang Feng somehow transmigrated into a different world and received a legacy of an ‘ancient high tech’ family, which does not directly raise his power, but gives him the technology to build things which are way more advanced than the seemingly medieval world.

Breasts are NOT supposed to spontaneously grow for no reason.Women's personalities do NOT flip on their heads without warning. These are two things Tsunade believes wholeheartedly.Until Hinata's embarrassingly large girls begin to expand even bigger than before. Heralding her devolution from a sweet and innocent young lady into a foul-mouthed slut with tits like weather balloons. Tsunade intends to find out why.

Choi Hyun-seok, a heavyweight champion of the biggest mixed martial arts league on Earth and the one who was called the strongest had died.Afterwards, he was granted new life as a hero in another world.‘Wealth! Honor! Endless beauties at your fingertips!’With thoughts of such a dazzling future, the first thing that he saw when he came to this new world was a towering ox monster.The monster, who was the commander of the demon army, asked.“Hero? You’re saying you’re the hero?”“Uh…I think…?”And so, that was the start of hell.