MTL - This Cannon Fodder is Covered by Me! - Chapter 46 I covered this star

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

Before death Qin Tailong left two magic tools to his son, Qin Dong. In his father’s last words, Qin Dong realized his father had been murdered by Lord Wanpeng, who coveted one of the family magic tools—mystic chaos ring. Bearing the hatred in mind, Qin Dong swore to revenge against his foe. He escaped to the mortal realm temporarily, continued to strengthen his cultivation base and studied the secret hidden in the seals of the ring. While reveling the secret, he found five ladies were the key to the release the seals. Their romantic relationship with Qin Dong was established the moment he was born.

- Description from Novelupdates

A story of time-travel. Sly and cunning, she unexpectedly became a sickly noble lady whose fiancé is merciless and demotes her to a lowly concubine. She sneers and bravely breaks off the engagement. To hell with scumbags, marry heirs to lords, blind the courts with her brilliance.

Due to all sorts of accidental mishaps, Qin Qi, together with the game system, is transferred into a strange world. In this world, everyone condenses Martial Soul, while Qin Qi’s Martial Soul was ten BOSS in the game! In the world, when others cultivate arduously, Qin Qi just needs to kill mobs and gain experience! In the world, there is only one alchemist among thousands of people, while Qin Qi can choose all skills, including Blacksmith skills, Spiritual skills, Matrix skills, Chef… Alas, it’s so annoying, so learn all of them. In the world, when people choose to be his enemies, their destinies have been settled!

- Description from Unknown