Isekai Dungeon Architect - Chapter 4: Using skills

Yang Hao was a mortal with no hope of becoming a warrior. On top of that, he was betrayed by his personal guard and left in a dangerous forest to be devoured by beasts.However, he was fortunate to encounter two women—one fat and the other skinny. They offered to help him escape the forest and become stronger, but in exchange, he had to engage in dual cultivation with one of them.Yang Hao decided to accept their offer. His life mattered more, and he suspected these women were not ordinary but powerful. It also seemed they were hiding something from him.---I hope you read at least five chapters before reviewing.---Warning: There is rape, mind control, and a slavery.

Master said, the woman I held in my hands, I must protect for the rest of my life.

Known as the youngest academician-level senior engineer, Zhao Guoyang was reborn in the 1990s. In this era of economic globalization, with his extraordinary wisdom and extraordinary insights, he created one miracle after another and became a name that shocked the world!

Wisdom is condensed every bit, brilliance is created by sweat, and witness the rise of a great power!

- Description from novelbuddy

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?