Diary of Guarding Monster Girls - Chapter 311 - 234 He is quite low-key (6K)

"Lu Lijun! what're you doing?"

In a world where magic and divine power collide, the youngest son of Lucifer, a demon boy born with unimaginable strength, was chained and sealed away by his father to prevent him from destroying Hell itself. At the age of eight, his power became so uncontrollable that even the King of Hell feared his existence. Desperate to keep the demon's destructive potential contained, Lucifer made a pact with the great Merlin, who trapped the boy in the human realm, binding his powers with enchanted chains.Years later, with Merlin dead and a kingdom still fearful of the demon’s release, an elite group of knights, blessed by the gods, take it upon themselves to guard his prison. However, when a war between the mages and knights erupts, chaos provides the perfect opportunity for the young demon to break free.Hidden among the knights, disguised within their ranks, the demon plots his next move. But his escape is just the beginning. Hunted by both the mages and the knights, he must navigate a world where ancient gods, wizards, and warriors clash. As he travels deep into enemy territory, sneaking into the heart of the kingdom, he is driven by one purpose: freedom.Now, with his powers still sealed but his physical strength unmatched, the young demon embarks on a journey that will shake the foundation of both realms. Can the knights stop him before he regains his full strength, or will the demon's wrath bring both Heaven and Hell to their knees?As the demon hides in the shadows of the human world, a new chapter in the war between gods, magic, and demonic power begins.

Shan He wakes up and realizes that he has become a gin in the world of Conan!
Use this identity to tease Conan and deceive the BOSS.
Start his wicked life!

Content Labels: Original Towards Young Man Inspirational Life Rebirth
Search keywords: Protagonist: Shan Heqing (gin) ┃ Supporting roles: Edogawa Conan, Maurilan, Belmod, Vodka, Kudo Yusaku ┃ Others: Conan, bad taste, gin, sweet

- Description from novelbuddy

Progression, magical cards, weak to strong, card reforging!The young, sickly Irwin has seen nothing but bad luck in his short life. When his brother finally returns with a magical card for him, his luck is about to change. But will it change for the better? Irwin is sent off together with another group of youths to placate a group of sorcerers. With just a weird utility card granted by his brother, he can only pray to stay alive long enough.[Has been updated with the rewrite of the first 27 chapters]This is a Card gathering story! Crafting is initially not the main focus, but as the story progresses, it becomes more and more important to the MC.Release schedule: [Fri/Sun] Roughly 22:00I am still a non-native English speaker (hard to change), so even with the edits and rewrites, you might find some oddities. Let me know, and I'll fix them right up.