With My Profound Love, I Offer to the Years - Chapter 86: They’re all trapped in a web of feelings they’ve created, and the harder they struggle, the tighter they get.

A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into an endless bloody chaos and mankind is on the brink of extinction…

Aaron, a wildlife biologist, became a military strategist right after a global war between nations began.He never wanted to participate in the war but he had to, because he wanted to continue his studies on endangered species the moment the war was over, but to his surprise, everyone in his unit were killed, including him, and the next thing he knew, Aaron woke up in the body of a young noble having a similar name to his.However, he also noticed he had awoken in a world different from Earth.In this world, demonic beasts ran rampart with only one thought in mind, causing them to feed on anyone they see, be it humans, elves or even magical beasts as well.During his first encounter with a magical beast, Aaron awakened a system which allowed him to bond with magical beasts and to obtain terrifying abilities from these bloodcurdling magical beasts, so he used his experience as a wildlife biologist to help make it easier for him to bond with these beasts.However, Aaron also noticed he could evolve these beasts if their loyalty towards him had reached a certain level, so he vowed in his heart to grow strong enough to protect those he cared about in this world with the hope of living a happy, peaceful life where he'll be able to focus fully on his passion as a wildlife biologist.

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.

Gods choose those with natural talent; demons choose those who never give up.My name is Dylan Chen, a person chosen by the demons. Of course, you can also call me “Ghost Guest.” On the road of reincarnation, just mention my name, and the guards of the netherworld will make way for you.That day, I asked the heavens three questions, and the celestial beings and Buddhas remained silent. Then I knew there was no longer a place for me in this world. Therefore, I have no choice but to kill them all!Better to live a complete life as a mortal than to be an immortal for eons! This immortality, I shall not pursue!