The author continuously plants suspense throughout the story... Each narrative thread intertwines with the others, and in the end, the author skillfully weaves them into a complete and logical picture, revealing the truth. —Writer | Chan Ho-Kei

Killing is thrilling, but cleaning up is agony... This book tightly revolves around such a theme, presenting an almost obsessive level of cleanliness. Because of this, when “untidy” scenes appear, the dramatic tension delivered to readers is even greater, and the chaos within the protagonist's inner world becomes all the more fascinating... Readers will not only encounter tightly-woven, logically rigorous battles of wits but also witness the author's almost sorrowful mockery of societal sickness. —Writer | Chang Hui-Tzu (Little Flower Mom)

Kun Lun employs a black humor style to handle the narrative... It can be said that a remarkable balance is struck between “being thrilling to the point of discomfort” and “being flippant to the point of unacceptability”... While this work is highly entertaining, the aftertaste it leaves is cleverly tinged with a hint of gloom. This is a fascinating combination, like ice cream made from intensely bitter chocolate. —Mystery Critic | Luna

★Film rights and Korean rights sold!
★A groundbreaking, unconventional masterpiece from PTT, with each installment wildly popular and once dominating the Marvel board’s headline!
★The highly popular “Clean-Up Guide” trilogy on Mirror Literature has surpassed 240,000 total views!
★You should clean regularly, or it’s disrespectful to the victims!
An obsessive, cat-like teenage killer; an unlucky but optimistic office worker; a broken, vengeful girl; a corpse trader who has forgotten his name; an enigmatic and stunning psychologist; a sunny-smiling dessert shop owner; a mysterious, bloodthirsty organization of serial killers; and an elusive information broker—
Do you dare follow them into the dark abyss of your own heart?

This series consists of 3 volumes: A Home Cleaning Guide for Serial Killers, A Bullying Diary That Must Not Be Discovered by the Teacher, and The Corpse Trader’s Forgotten Record Book.

Don’t you have your own secrets?
To survive in a world of evil, is kindness nothing but a burden?
—Then, let’s go to hell together!—

Once you fall into the cycle of evil,
there is no end, only endless sinking.

The bruises beneath the pure white uniform are a girl’s daily record.
Violent humiliation born of pure malice grows ever more cruel with the silent complicity of bystanders—
How much evil must one endure before fighting back?

Pei-ya, a ninth-grade student, is forced to transfer schools and live with relatives after her father’s sudden death. Yet, the malicious bullying at her new school and the psychological torture from her relatives plunge her life further into chaos. Just as her mind and body reach their breaking point, an unexpected gesture of care draws her closer to Chuan-han, a kind convenience store clerk. The late-night store gradually becomes her only refuge.

Haunted by painful regrets, Chuan-han seeks redemption and reaches out to help Pei-ya. But, unable to escape the shadows of his past, he inadvertently drags her into even greater danger. To protect Pei-ya, Chuan-han sacrifices himself and disappears without a trace.

Confronted with overwhelming evil, Pei-ya has no choice but to fight back—the exhilaration of revenge makes her believe she can escape this bullying hell, but instead, she is consumed by guilt, teetering on the edge of collapse, accompanied only by that relentless voice… “Let’s go to hell together!”

▲Beware! You who seek vengeance,
do not let the double-edged sword of hatred cut you open first.▲

Kun Lun
You will like my novels.
A phenomenal writer on the PTT Marvel board, his series installments sparked heated discussions and overwhelming praise, with the title once dominating the board’s headline. On the publisher’s platform, he holds the throne for “highest click-through rate and most followers.”

1.What Is Hidden Inside
2.The Price of Pleading Is Giving Your Line ID
3.Girls Who Evolve into Rude Bitches Deserve to Be Hanged
4.The Necessity of Taking Care of Physical Needs
5.A Lonely Beast Trapped in a Lonely Cage
6.Tell the Doctor Every Secret
7.Seeing Yet Pretending Not to See
8.That Girl’s Backup, This Boy’s Helping Hand
9.Lion, Lion, Tell Me
10.A Monster Born from Endless Regret
11.A Frog Drowning in the Pool
12.A Manufacturing Reporter Asks, the Local Principal Responds
13.More and More Practice Is Needed
14.The Promised Land Granted by an Angel
15.Enrollment Open for the Course of Broken Teeth and Bloody Foam
16.Don’t Blame Me After You Know
17.Erase Me
18.Ladies and Gentlemen, What Is Revealed Is
19.The Day the Flower Blooms
20.Hypocritical Liars Go to Hell
21.The Information Broker and the Corpse Trader
22.The Crescent Moon After the Hunt Is Dazzling
23.The Beast Waiting for the Hunter
24.The Daughter of Jack
25.The Most Honest Big Liar
26.The End
Extra Chapters:
Extra: The Violent Moose That Must Not Be Discovered by the Store Manager
Extra: The Bloody Christmas That Must Not Be Discovered by the Neighbors