Start in DxD as Motohama: Leveling Up in Another World - Chapter 33: Sorry, Tsubasa.

“I shouldn't have used illegal downloads in the first place.”

Ian woke up in the middle of a strange swamp as his own terrible character.

In a dark era on the verge of destruction, the hopeless character struggles to safely return to reality.

The first time she saw him, he was surrounded by flames. She couldn’t clearly see his eyes, but his gaze burned every part of her skin it lingered on.

Surely if the legendary beasts ever had existed, he would be one of them—one of the dragons.

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Kel has spent her life as a palace guard, hiding her mysterious ability. When sent in the princess's place to form a marriage alliance with a neighboring kingdom, she is captured by enemy soldiers and taken to the Serin Empire.

The ruler of Serin is a terrifying and coldhearted man, but he seems to have taken an unusual interest in Kel. How long will she be able to keep her identity and abilities a secret under the constant gaze of the Dragon Emperor?

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!!Slow burn romance!!

~I own no rights to the cover image~

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

so, reincarnation huh?“a lot of good... a lot of bad... balanced karma.” “good news you get one boon to bring with you to the next life. unfortunately for you though, you don't get to choose. totally random. ready?”join Apollo in his new life where through sheer luck (good or bad?) is raised by an all hungry, all dominant and all loving hivemind who will burn the galaxy just to see him smile.