Jikuu Mahou de Isekai to Chikyuu wo Ittarikitari - Chapter 52 – Mana crystal of Body reinforcement

Calamity descends upon a a tranquil world in the black of night, transforming it into a death game! This a a true apocalypse, but this is not the end of humanity!

- Description from Novelupdates

Lucien, a guy who has nothing but the desire to save his mother. To get strong enough, he makes a contract with the demon of L.u.s.t. And now, only by making a great harem, will he gain the power to protect those dear to him.

10 years ago, after “the Gate” that connected the real world with the monster world opened, some of the ordinary, everyday people received the power to hunt monsters within the Gate. They are known as “Hunters”. However, not all Hunters are powerful. My name is Sung Jin-Woo, an E-rank Hunter. I’m someone who has to risk his life in the lowliest of dungeons, the “World’s Weakest”. Having no skills whatsoever to display, I barely earned the required money by fighting in low-leveled dungeons… at least until I found a hidden dungeon with the hardest difficulty within the D-rank dungeons! In the end, as I was accepting death, I suddenly received a strange power, a quest log that only I could see, a secret to leveling up that only I know about! If I trained in accordance with my quests and hunted monsters, my level would rise. Changing from the weakest Hunter to the strongest S-rank Hunter!

[Congratulations to the host for binding the Shenhao check-in system. 】

Sign in and check in to get rewards!

[Successfully signed in on time and obtained one billion assets. 】

[Sign in successfully, get the handsome face of the exiled fairy. 】

[Successfully checked in at Dongshan Villa, and obtained the ownership of Dongshan Villa. 】

…

Ever since the sign-in and clock-in system was bound, Chen Yun was either checking in or on the way to clock in.

From then on, amidst the wild flowers and the worship of the heroes, a brilliant god rose up.

In the world, I am the only one who has the name of a god!

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- Description from novelbuddy