MTL - Plane Source Code - ~ Edman alloy

Cheng Yin likes her deskmate Chen Yan for a long time, but she never dared to confess her love for him, and the phrase ‘I like you’ is a secret hidden in her heart, but she can’t help but blurt it out from time to time…
Cheng Yin: “Chen Yan, I’ll whisper something to you.”
Chen Yan always leans over quite cooperatively, “What?”
The words came to her lips, Cheng Yin blushed and changed it into: “Your pants are unzipped.”
Chen Yan: “?”
Later, this kind of useless whispering has become more frequent, and Chen Yan listened again without moving a bit: ” Speak.”
The day of the party, Cheng Yin drink for the first time, Chen Yan became two in front of her eyes, she grabbed the person with both hands, want to try to catch the real Chen Yan, only to have her hand caught, he lowered his head in her ear and said: ” Let me whisper to you.”
Cheng Yin: “…… what?”
Such bad behavior, she thought it was something bad, Cheng Yin checked her pants and made sure the zipper was closed before she lean over.
The man’s breath blew softly in her ear, laced with a bit of the smell of wine.
“I like you.”

- Description from Novelupdates

The human race is fending off the assault of the thaids, strange monsters evolved by animals occupying most of the earth's surface.

Because of the monsters, society has evolved into one based on individual fighting prowess; Erik is an abandoned young boy living in such society with the most useless of the powers.

Everything changes when his father returns home, bringing something he would have never expected.

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Feng slowly backed up to the door, “W—what’s up with you both?” Two tall blond men stalked closer and caged her in the corner, “Aiden, Ethan, you both are too—too close,”

“My only regret was.. living like a puppet for my sister!”Olivia Witherland had no one but her sister in this world. So when her sister Oriana married the duke of Aykroyd and became the duchess, she had no choice but to follow her there. Despite knowing that her sister had killed the previous duchess and going to harm the child left behind, she kept her eyes closed. But when the child grew up as Demon,he killed everyone including her and the innocent kids, Oriana gave birth to.Olivia regretted that her silence had harmed not only Damon but her innocent nephew and niece. Everyone was killed, but the killer lived a hollow life too.But fate gave her a second chance. Would she be able to save everyone or would destiny play a cruel game again?