The Record of Unusual Creatures - Chapter 1739 - Constance’s Advance

In my previous life, I was half a move short and ultimately failed to reach the summit. Having traveled back to the past, this time... I want to become the strongest in this world! To become the strongest in this world, one only needs three simple steps: 1. Pick up a newly-transferred Demonic Sect Enchantress off the streets. 2. Subdue and vanquish the demon. 3. Take her cultivation technique for myself. Awesome! I’m already invincible! ———————— Years later, Yan Yu, who had earned the title of “the strongest,” was interviewed on television: Host: To whom do you want to give thanks for your success today? Yan Yu: I’d like to thank a very important woman to me. Host (eyes lighting up): Oh, is she your wise and virtuous wife? Yan Yu: No, consider her a stepping stone, I suppose. Host (wiping sweat): Then... what about the other members of your team? They must have helped you as well, right? Yan Yu: ... How could there possibly be only one stepping stone on the path to godhood?

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

- Description from Novelupdates

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?

Living in Tokyo, using the Mind-reading Extraction Skill, I thought I could become an all-powerful superhero, but instead, I got dragged into a twisted cycle of love?! Without even a moment to mourn my youth, the one who immediately rushed to the battlefield was— Kiryu Hina (ex-girlfriend), “Remember, this is what you owe me.” Ayakoji Chiyoko (current girlfriend), “Break it off with that woman immediately!” Kohinata Motoyo (rough target), “Please, I’ll do anything!” Ai Cheng Hua Lian (always losing), “Huh?” Kagura Hikaru (protagonist), “...........” My youth romantic comedy can’t possibly be this twisted!!!