The Transmigrated Author - Chapter 4: Class In Session

Yang Yan found himself becoming a corpse. But before he could stay for a minute, the lid of his coffin was opened.A stunning face appeared in front of him.Leng Biyue!As the Holy Maiden of the Fairy Maiden Sect, she possessed the quasi-empire bloodline!Blood spilled from the corner of her mouth, fell, and landed on Yang Yan's face.His eyes opened!“The Sword Dao Emperor, who was buried for 100,000 years, has come to life once again!”

The NPC sets out on a journey to defeat the Demon Lord, joined by beautiful girls he meets along the way.---This is an NSFW story, so if you're under 18, turn back now, son. No NTR, and no full-on Yuri. There might be slight Yuri—like girls kissing and stuff during threesomes—but it's not that kind of Yuri where the girls fall in love with each other while in a relationship with the MC.---

Liu Duo was a young girl whose grandmother sold her to four brothers with the intent to be a bride. Unwilling, she ran away the following night, only to fall unconscious while trying to get away. Unexpectedly, however, she was reborn with the spirit of a 25 year old woman, also named Liu Duo.

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.