Monster Musume Harem wo Tsukurou! - Chapter 40: Mock battle again, vows and the work increased...

The mortal body, metamorphosis, longevity, immortality, and eternal life. These five realms, step by step, reveal themselves in front of you. As a normal person, how can one try step by step to reach and open the door to eternal life?

Between the heaven and the earth lies the mortal body, the mysteries of metamorphosis, freedom of longevity, the power of immortality, and the hope of eternal life. A story filled with endless new magic, a new world of immortal styles, people, demons, gods, fairies, magic, kings and emperors. A world of love and hatred, revenge, and mystical battle, all in “Eternal Life.”

- Description from Novelupdates

Jiang Chengxuan accidentally traveled to the world of cultivating immortals, and accidentally obtained the inheritance of cultivating immortals.

However, the aptitude is really low, and he has been practicing hard for a hundred years, but he still cannot be promoted to the foundation building state.

Just when he was disheartened and silently came to a mortal city, ready to end his life here, Goldfinger finally arrived belatedly.

It is detected that the host has achieved the achievement of cultivating immortals for a hundred years, and I hereby reward one longevity fruit, which can increase one’s lifespan by serving it.

The next achievement task is now posted.

Ask the host to clear the level a hundred times. After completing it, you can achieve the achievement of breaking through the level one hundred times, and you can get one chance to successfully clear the level.

Ding!

Ask the host to complete a hundred times of spell practice, and if you achieve it, you can get a jade talisman for the inheritance of the perfect spell.

Ask the host to complete a hundred times of exercise achievements, which can improve the root bone.

Ask the host to complete the achievement of making talismans a hundred times…

Ask the host to complete a hundred enlightenment achievements…

Ask the host to complete a hundred alchemy achievements…

Ask the host to complete a hundred poisoning achievements…

Please host…

Unknowingly, when Jiang Chengxuan heard the prompt from the system again, he was told that there is no achievement worthy of you to complete, because your existence itself is already an achievement that can never be surpassed.

- Description from novelbuddy

Nero was an orphan boy who one day went to sleep like any other day in his apartment. However, what he did not know that the moment he slept, it would be his last day of life...Or at least that was how it should be.Nero's soul wandered between the worlds and ended up entering the body of a girl who was trapped in a human mutation laboratory. While the girl's soul was still alive, he hibernated inside her body.After so many tortures, the girl named “Zero” in the laboratory died. But, it didn't end there, when the girl died, something very strange happened, something took control of the girl's body and that same thing escaped the laboratory.It was when Nero what that was hibernating in the girl's body woke up and realized was completely naked. In addition, he realized that he turned her into a beautiful winged woman with white hair and some pink strands.

Kuramoto Daisuke, a freshman in High School was suddenly exposed to someone vanishing in front of him. Turns out he was admitted to a Special Class full of Isekai Heroes that were regularly summoned to Otherworlds since the start of their Middle School. He was told that he was to become their Support to prevent each of the Heroes' fate of dying in the world they were summoned into. Though mediocre, he realized that his ability has a great potential but it needs a lot of hard work on his part.

Unconvinced of being just the Support Character, he vowed to excavate his mediocre ability, all the while supporting the Heroes using it.

And maybe more.