MTL - Landing in the Fantastic World - Chapter 901 I wrote the Secret of Time and Space

Zain Talen, your average college slacker, was busy skipping class to go play a new video game he had just bought, when a strange woman came running his way. Before he could get out of the way she collided with him. Quickly picking herself up she ran away leaving behind a pendant. Without knowing where she went Zain pocketed it and decided to look for her after his gaming session. During his binge, he heard it.

*Bang

*Bang

*Bang

His door was assaulted with the banging of someone who sounded desperate to get in. Rushing to open the door he found himself overpowered by something and not soon after felt a sharp pain on his neck. Vision fading in and out Zain found himself at death's door.

“Could this be the end?”

[Congratulations!]

[You have been turned into a zombie!]

[QUEST RECEIVED- Begin your horde!]

[infected 0/10]

[Level 1]

Yang Yi was orphaned as a child. Foul play was ruled out by the authorities, but Yang Yi always suspected otherwise. Finally, once he was older, he met one of his father’s old friends who revealed the truth about his parents’ deaths. His father was an intelligence broker and had stumbled upon a mysterious, powerful independent spy organization. Both his parents’ were murdered to ensure the organization remained a secret.

Since he was unable to forget why they died, due to his eidetic memory, the only way he could be at ease was to seek revenge. In order to fight against the mysterious organization, he would first have to train in the art of espionage. However, not even one of the national spy agencies was willing to accept Yang Yi into their ranks due to his father’s sensitive identity.

Left to forge his own path into the field, he seeks out his father’s old allies for help. He learns how to be a spy in unexpected places while gathering the resources and allies necessary to form his own private spy organization.

Follow Yang Yi in his quest for vengeance! Follow Yang Yi as he prepares for A War Between Spies!

- Description from Novelupdates

My handsome, overpowered dad, who only ever cared about me, ate something strange and turned into the Demon King. He used to be the sweetest, most doting father, but now he’s the final boss?! Because of this, my dad is fated to be killed by the male lead, and I’m destined to die lonely while mourning him. At that moment, I returned to the past and realized that this world is actually a game! I couldn’t prevent my dad’s descent into darkness, but no matter what, I must turn him back into his original self. If I succeed, I can get my loving dad back, right? For now, I need to get close to the male lead, who’s destined to kill my father…! So, I became a Holy Knight and even managed to be adopted as the ward of the Pluto Ducal House—the male lead’s family. …The problem is, I’ve become way too strong. As long as I get along with the male lead, my dad might avoid being labeled as the Demon King. “But that’s strange.” “…What is?” “Your lips… they’re heart-shaped.” “W-what? Don’t look at my lips!” At that, the male lead tried to avoid my hand and ended up rolling under the bed. “Ahhh!” “…?” He’s supposed to be the strongest person who’ll one day kill my dad, but for now, the male lead is just too cute.

After accidentally falling, she actually finds herself bound to a Second Female Lead Counter Attacking System!