The Martial Unity - Chapter 2817: Towards the Center

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

Never underestimate the guy who has so much Mana it should kill him...Nathaniel's bus ride was supposed to be just another boring commute. But now, he, 23 fellow passengers, and a corgi named Biscuit are stuck in a “Hell difficulty” tutorial, battling monsters and leveling up.Easy difficulty, anyone can handle. Normal difficulty, you've got to put up a fight to get by. Hard difficulty is where only the tough ones last. And Hell? That's where you have to be a bit out of your mind!With his terrifying talent for mana manipulation, Nathaniel decides to invest every stat point into mana. Attribute imbalance be damned. It will either kill him before the monsters and his enemies can, or turn him into one of the most powerful beings within the system.

SMUT & HAREM!Damon was reincarnated into a magical fantasy world with his previous life's memories intact.Damon became the a half Primordial Incubus Demon- Half Divine Dragon and was the son of the Grand Duchess of the Divine Demon Empire.At this moment, Damon obtained the Divine Sign- in system.[ Ding! Congratulations for Signing in the Body Of Chaos ][ Ding! Congratulations for Signing in the Eyes of Oblivion ][ Ding! Congratulations for Signing in the Divine Blood-soaked Sword ]Watch Damon's adventures as in the Mythological World of Austonia as he slays all his enemies on the way to becoming the strongest of them all.( There will be SMUT )

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.