System Discord - Chapter 49: SysDi : Return to Sender

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again. 

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

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.

Seo-jun was your average college student until a fatal vehicle accident took away his life. He found himself waking up in the body of Adrien Mallorne, the youngest son of a Count. Armed with his modern-day knowledge, he navigates through the new world he finds himself in. But why is the second prince following him around and blatantly flirting with him?_______A long arm that looked muscular, even with it being fully clothed, reached out above him. “Is this the one you want?” A familiar voice asked, sending shivers down Adrien's spine.It's the guy from the bookstore!Adrien nodded his head to answer the guy's question, forgetting that he probably wasn't in the best of position to be seen. “Ye-yeah.”Long, thick fingers wrapped around the spine of the book, swiftly pulling it down from the top shelf. “Understanding Economics?” The guy read the title out loud. “Mr. James' class?”“Yes.”The guy, who was standing close to Adrien, basically caging him in between his chest and the bookcase, handed him the book. The guy then reached up one more time and grabbed a green-colored book. “I suggest reading this one if you haven't taken the assessment yet.”Adrien took the book from him. “Thank you.”A deep voice rumbled from behind him as the guy laughed. He then took a step back, releasing Adrien from his confinement. “Try that again, but to my face this time.”