Leo Erig, a third-year student at Soubu High School, is secretly a demon. In this world where demons, angels, and fallen angels exist, he, having just been promoted to a high-ranking demon, asks his beautiful junior in the Service Club's activity room, "Do you believe in the existence of demons?" This is the story of a half-demon, half-human, who gradually lets loose in this seemingly peaceful yet extraordinary world as he tries to subdue his familiars. Demons don't fall in love unless you willingly submit... (PS: Eight completed novels: *The Great Summoning of Girls*, *All-Around Fantasy*, *Instant Death*, *The Summoner of Miracles*, *The Demon King Doesn't Need to Be Defeated*, *I Just Want to Be a Supporting Character*, *Expectations in Another World*, and *Fantasy Library*. Ten years of writing experience...)

"Damn it, I've traveled through time again!" Dongfang Zongheng's consciousness darkened, and he only managed a curse before he fell back into unconsciousness. As if struck by the world's most vicious reincarnation curse, Dongfang Zongheng traveled through time and time again, each time possessing either a criminal awaiting execution or a beggar with mutilated limbs. Every time, just when life began to glimmer, a sudden disaster struck and he died, his soul traveling through time again. He was undoubtedly the most miserable person in the world of time travel. This time, he traveled through time as a hapless demon from another world—Feng Yi, the thirteenth son of the Night Demon King, one of the three great demon lords. Satan. He discovered that despite being a demon, he was proficient in music, chess, calligraphy, and painting. A single song could crush an enemy, he could easily gather magical energy to create a magical scroll, and reciting poetry could boost morale. He had abducted an emperor to be his henchman, stolen the heart of a peerless beauty, and deceived the gods into willingly serving him. Touching... uh, too much, it's too erotic. I need to censor it.

【Traditional writing style, traditional fantasy, no system, multiple female protagonists, plot, emotion】

After traveling through time and begging for more than ten years, he was inexplicably picked up by a woman who used drugs.

Faced with the cruel and ruthless leader, four guardians with different personalities but all ruthless in killing, and even the obedient maid beside them, are actually a hidden cold-blooded killer.

This is not a place for human beings!

In this crisis-ridden Thousand Poisons Sect, Mu Yunfeng wants to escape every moment.

It is never too late to endure hardships and endure hardships for ten years!

The man secretly vowed that one day he would break free from the control of these women.

But gradually, he felt that the style of painting began to become wrong.

......

"Stinky man, believe it or not, I won't detoxify you?"

"Ah, yes, yes."

"You are just a servant. Do you believe I can stab you with my sword?"

"Ah, yes, yes."

Looking at the "masters" who were holding him tightly, Mu Yunfeng was speechless.

"What you say and what you do seem to be different."

"I still like your unruly look from before..."

After staying up all night to finish reading the entire series of Pillar Slayer, Qin Zi suddenly fainted from anger.

When he woke up again, he found that he had actually transmigrated into this manga and become the Water Pillar "Giyu Tomioka"!

This time, he will do everything he can to save everyone in the Demon Slayer Corps, find a way to break the curse of the Demon Slayer Mark, and prevent the tragedy from happening again!

"Although it's a transmigration into a book, his personality and consciousness will lean more towards Giyu Tomioka. Or rather, he is Giyu Tomioka, and Giyu Tomioka is also him."

"Of course, this time our Giyu won't be disliked, probably~"

[Demon Slayer + System + Isakuza + Single Female Lead + Exciting Battles]

Fan Ma Lingyun unexpectedly transmigrated to the Demon Slayer world, was taken in by the Kamado family, and was bound to the "Heaven Rewards Diligence" system, which allows him to infinitely increase his physical strength as long as he trains hard!

To prevent the tragedy of the Kamado family, Hanma Ryoun began arduous training, constantly climbing towards the throne of the strongest.

Just as Muzan was about to attack the Kamado family, Hanma Ryoun intervened in time, defeating Muzan in one blow and posing three soul-searching questions.

"What's so interesting about it? What's so funny about it? What do you take your life for?"

Muzan's expression instantly cracked upon hearing this!

He then joined the Demon Slayer Corps and began his journey to slay demons.

Tanjiro: "Brother Hanma, your breathing technique is amazing! What school is it?"

Fan Ma Lingyun: "Huh? What's a breathing technique? I'm all about raw power! There's no mechanics, it's all about numbers!"

Tiandao Feiyuzhen, accidentally reincarnated into the world of Demon Slayer, was picked up and raised by the former Naruto Pillar. He vowed to change the regrets of the Pillar Slayer, and since then...

There is a new pair of master and disciple on Taoshan, who are enemies and have a kind master and filial disciple.

The Demon Slayer Corps now has a thick-skinned and strongest pillar.

Shinobu Kocho has a sweetheart she cares about.

Muzan has a new big father - another psychological shadow after Yoriichi.

When the evil spirits are slain, the night will no longer be scary!

Ghosts and monsters in the darkness spy on the human world.

In unseen corners, bloodshed and cruelty quietly grow. Ghosts eat men, men slay ghosts—millennial legends and grudges are intertwined with fate...

The protagonist, a fan of the manga, is transported to the world of Demon Slayer and discovers that he is actually a descendant of Yoriichi Tsugikuni, the god of the human world. Born with the Demon Slayer Mark, Kuuga Tsugikuni feels...

Haruto completed the Ghost Swordsman training with great difficulty and went to Fujiki Mountain to participate in the selection. Suddenly, a line of comments passed by his eyes: Such a handsome guy, it's a pity that he will die in the next second.

A moment later, he was killed by the hand ghost hiding in Tengxi Mountain, who pierced his heart.

Coming to Fujixi Mountain again, Haruto, who thought he was dreaming, saw another line of comments before his eyes: The guy is very strong, but it's a pity that he can't save Santu.

Xuantu? Who is that?

I'm just an amateur demon slayer swordsman who has been practicing for two and a half years. Don't pin your hopes of saving people on me!

This book is also known as "Although I haven't watched Demon Slayer, I have been spoiled by the barrage", "I only have one frame of the original painting, and I rely on the barrage to argue with Muzan", and "What is the official complaining tool?"

Key points: There is only one female protagonist, the female protagonist is tolerant, no important plot characters are killed, and the official pairing is not broken up.

Contents: barrage comments + the protagonist's rich inner thoughts, which is more humorous.