Damn it, I'm surrounded by childhood sweethearts - Chapter 721 - 492. There’s a bit of childhood appearance_2

Mark is a genius military weapon designer who was kidnapped by a mafia gang after refusing to work for them.
They forced him to design unique weapons for five years, until one day he successfully escaped only to get shot by his trusted comrades.
*Ding! You awakened a weapon system.
When he opened his eyes, he was in a different body and in a different world.
"You want to kill a wild boar without being detected? Forget about bow and arrow. Here, I present you this sniper rifle."
"You want to kill a horde of goblins from the sky? Forget about those flying carpets and brooms. Here, I present you the fighter jet."
"You want to kill a dragon? Forget about taking the help of the S-class adventure team. Here, I present you a nuclear bomb."
Join Mark Spencer/ Lu Zhen as he brings the whole world to its knees with the help of his weapon system.
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Note: Author isn't born in an English-speaking nation and has no editor either. So, please be understanding if there are any grammatical errors.
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"Your bed is cold," spoke a voice in the room that had her eyes go wide in fear. Nervously, she turned around, gulping softly to see a shadow on her bed as if someone laid down there. The man who had been lying down sat up emerging out from the shadows where he had been waiting for her.

Becoming the physician of the villainess who brought about the world’s destruction, I tried to escape to survive, but the reactions were strange. ______________________________________________ “The Doctor Cured the Villainess and Ran Away” is a Korean web novel authored by 긘가 (Geun-ga). The story follows a protagonist who becomes the personal physician to a villainess responsible for multiple world destructions. After curing her, he attempts to escape, leading to unexpected reactions. The novel was first serialized on October 5, 2023, on the platform Novelpia. It gained recognition by receiving an honorable mention in the 2023 Novelpia Universe's Strongest Web Novel Contest. Readers have praised the novel for its engaging narrative and well-developed characters. A review on Naver Blog highlights the protagonist's repeated attempts to prevent the world's destruction and his complex relationship with the villainess, emphasizing the story's depth and emotional resonance. The novel is available for reading on platforms like Novelpia and has been published as an eBook on Kyobo Book Centre. In summary, “The Doctor Cured the Villainess and Ran Away” offers a compelling blend of fantasy and romance, exploring themes of redemption and the complexities of human relationships.

Deemed hopeless by her family and that she was better off married when her fourth novel continued to be a flop, aspiring author Xiang Wan begins to doubt herself. While feeling conflicted about continuing her dream as an author, things take an unexpected turn when a dazzling guy appears before her and takes her to the police station.