Senior Brother, Stop It, You Are A Villain! - Chapter 401.2

After accidentally transmigrated into the world of Hunter x Hunter, Akira discovered that he was an extremely rare natural Nen user!With the Nen ability Pokémon Master, he could automatically spawn Pokémon simply by traveling or participating in events.As he journeyed to various places, his Pokémon team grew larger and more formidable!The beautiful and powerful “Psychic Queen” Gardevoir.The “Purple Glutton” that devours all evil Gengar.And countless pseudo-legendary Pokémon!Before he knew it, Akira had become the strongest in many fields across the world!Now standing before you is the world strongest Nen exorcist, the strongest Floor Master of Heaven Arena, a Triple-Star Hunter in the fields of ruins, gourmet, and bounty hunting, and one of the world' top five Nen users—Akira!TL Note -This is a Translation

God plucked one of his creations from his first Earth and gave him a second chance in another one of his Earths...surprise it is in DxD! Now reincarnated as a perverted side character how will our poor protagonist handle his new identity? Well he probably wont make the choices you will want him to, that's for sure!

Died while saving his dear friend and cursing the arrogant general, Leo gets reincarnated into a world ravaged by magical beasts.Here, strength speaks for everything, and the weak are killed at the whims of the strong. Leo awakens as the lowest-tier Beast Master. Just as he was thinking he would again end up under the command of some stupid general who was the reason for his death last time, he received a gift from a mysterious entity.[Primordial Beast Dominion system]Now, surrounded by people who see him as a weakling, his journey to grow the strongest has begun.Where everyone is beating their head to make their beast grow and unlock their potential, Leo uses the system to break his limiter and grow fast and surprisingly strong.With dual talent, a broken system and a yandere sister, he embarks on the journey to rise at the top of the food chain.

Shi Qing Xia is practically an angel.

Kind, sweet-hearted, and good at her studies, she was admitted to the top university in Taipei.

However, the living expenses for the metropolitan city were far greater than she had ever imagined, so she started to work as a private tutor for wealthy families to make ends meet.

On her first day of work, she met Zhao Yi Bo and Zhao Yi Xuan, a pair of neglected 16-year-old genius twins whose prosperous and wealthy parents heartlessly abandoned in Taiwan. Shi Qing Xia found them to be gentle, compassionate, friendly, clever, mysterious, pitiful and attractive.

But appearances can be very deceiving…

Because behind those sweet smiles…

Deeply twisted and cruel demons lurked, waiting to rip apart the wings of this angel, condemning her to an eternity of conflicted bittersweet suffering — a rollercoaster ride of a heart-wrenching, twisted, and tragic romance more extreme than what someone so innocent could possibly imagine.

- Description from Novelupdates