Douluo Dalu: This herrscher is too weird. - Chapter 40: The Art of Barriers. The Stratos.

The starry sky mecha is as powerful as a dragon, and the gods and demons in the abyss are whispering and roaring.

In this era of collision between new techniques and old techniques, technology and divine power, Lu Yuan stumbled into the world with an attribute panel that allowed unlimited job changes.

“Occupation [Martial Arts Grandmaster] + material [Heart of the Nine-Headed Dragon of the Abyss], can be advanced and transferred to [Darkfall Dragon Sect]….”

Lu Yuan looked at his hands that were gradually covered with black scales, and the black hair behind his back was dancing wildly in the wind. His scarlet eyes stared at the humanoid mechanical body flying across the night sky like meteors, and whispered to himself with a smile: ” Now…I should be able to tear apart mechas with my hands…”

- Description from novelbuddy

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

“Are you my knight?” The silver-haired youth looked at the blonde girl before him and asked, his cheeks flushed red. This was their first encounter when he was only ten years of age.

“Are you my bride?” He held her in his arms, embraced the girl who had accompanied him for ten years straight. He was sixteen years of age.

“Are you my king?” He knelt before the throne, smiling foolishly as he looked at the girl holding the sword victoriously. At this moment, he looked like the boy he was when they first met.

“I’m fine without having eyes for you. The entirety of Camelot is for your taking.” Smiling soft and gently, he gave his eyes to the girl who lost her eyes due to the curse of the red dragon. He doesn’t regret it, he thinks. He was twenty years of age.

“So… Arthur… Artoria Pendragon, are you willing… are you willing to spend the rest of your life with me?” His voice was soft and clear as he reached out to touch her hand.

This was their legend.

- Description from Novelupdates

After being torn from the only life she knew, 16-year-old Margo is forced into a new home with strangers who call themselves her parents. Haunted by memories of her past and consumed by feelings of isolation, she struggles to adapt to her unfamiliar surroundings. School offers little relief—until she meets Lucien, a mysterious boy who appears just when she needs a friend the most.Gabriel is everything Margo needs: kind, attentive, and always ready to whisk her away from her troubles. Each night, he invites her to secret places—an abandoned playground, a fog-choked garden, a crumbling train station at the edge of town—each more unsettling than the last. Yet with every chilling rendezvous, Margo feels more alive... more seen.But something isn’t right. Gabriel never comes to school during the day. Her adoptive parents never see him. And when they catch her talking to thin air, their concern deepens into fear. They say Gabriel isn't real—that he’s a figment of her imagination. Margo wants to believe them, but Gabriel feels real. More real than anything else in her life.As the nights grow colder and more twisted, Gabriel’s true nature begins to surface. Shadows move where they shouldn’t. Time warps in his presence. And the places they visit seem to echo with whispers from another world. Margo is forced to ask herself: Who—or what—is Gabriel? Why does he only want her? And what will happen on the final night he asks her to come with him?As the line between reality and delusion begins to crumble, Margo must make an impossible choice: stay in a world where she feels loved, or return to one that barely feels real.But one thing is certain—some friendships never let go.