From MangaHelpers:

Nagumo Yumi is an idiotic high school girl, whose post-graduation plan is to go to the US and become president. To her high school friends' amazement, she actually manages to make it to the US during summer vacation. After befriending some elderly veterans, she becomes convinced that joining the Marine Corps is the best way to move her dream forward. The waitress Linda Crawford joins her to sign up at the recruitment center, and she also meets friends among the new recruits, Rita Fernandez and Donna King. Will they have what it takes to become a Marine? [tethysdust]

If I can succeed it's OK to use bugs or any possible way! A story of reincarnated ultra-high obesity young lord.

The latest series by Hiro Mashima is a Demon World Academy Dark Fantasy!!
DEAD ROCK is a demon king training institution that towers over the depths of the demon world.
Yakuto, a young demon, challenges the harsh entrance exam to knock on the doors of DEAD ROCK!!

Living carefree at home is the greatest shortcut—my house is the world’s greatest Magic Power Spot. That being the case, both my house and I were summoned to another world by some guys who were aiming for it. However, I’ve been living in this place for many years and my body is, apparently, abnormally overflowing with magic. Due to some unforeseen circumstances by those guys who summoned me, they quickly ran away. Be that as it may, there are still some ill-mannered people who covet the magic leaking out of my house. I won’t give up my house to those people! I’m going to wield my power as I please!

[Would you like to reverse time?]
[All your abilities will be reset.]
[Please choose the date.]

“February 28th, 1985. The day I was born.”

Financial power. I will gather all the fortune of the world—
and create a monopoly. I will monopolize all the dungeons of the world.

I will do this now, while the world is still peaceful...
before it all begins.

After being defeated and captured, the dragon slayer Leon became a captive of the Silver Dragon Queen. With the awareness of death, he used forbidden magic to curse the queen, but unexpectedly, the queen lost control.

He thought that this would make the queen live with shame for the rest of her life, and it would be worthy of the dragon slayer's mission.

But two years later, when Leon opened his eyes, next to him was a little dragon girl with a tail...

[Innate Ability: Resurrection]

"What? What's with this super OP cheat skill?"

However, Kang Hyeon didn't know what it meant to die, want to die, and not being able to.

The man who became the most infamous hunter on Earth with his immortal body!

"As a human disaster - no, as one against the disasters facing the human race,I will solo resurrect today as well!"

Ygret, a great sage that knows how to use all 4 elements, woke up in a body of prince Judas Lubarjan.

"Now I don't want to give up living with people."

“He is the master of the Nine Heavens.”

Yeon Jeokha was the child of a second wife. Viciously bullied by his father’s first wife and his siblings, he was later imprisoned in a warehouse after his father died of illness…

It has been ten years since his escape after he had learned martial arts that were out of the world.

“I regard the Yeon Family with great bitterness.”

The unstoppable adventure of the sole successor of the Heavenly Inquisition Sword, Yeon Jeokha, begins now!

Ikuto Touhohin just had a last fight with his old man, one that led him to make a rash decision to run away from home. He boards a ship, deciding to take a vacation, but the ship is suddenly hit by a huge storm--one that sends Ikuto overboard! When he regains consciousness, he realizes he is still alive… on some island. An isolated island. An isolated island with nothing but girls and talking animals. Stranded on an island with only girls, no electricity, gas, radio, television… like he was back in the stone age.

“Are you the one who called me…?” A black-haired beast looked at him with glowing yellow eyes. “It’s okay. It won’t hurt anymore. You’ll be okay.”

Estio was born as the youngest son of a farmer, but everyone hated him. He was a child who could read the hearts of people and animals. And…

“A cursed child.”

He finally turned 19, and it was now time for his coming-of-age ceremony. Now starts Estio’s journey to find happiness.

A mysterious monster called the High Beast, has taken control of the regions of Eurasia and Africa. Japan has cut off from the mainland to protect itself from this threat. The daughter of a legendary mahjong player discovers that monsters attack whenever a mahjong piece is hit across the board. This allows humans to be separated from the battle and for mahjong players to effectively combat the monsters with robots controlled through mahjong moves.

Diablo Volfir, a mighty magician, was sealed for aeons due to the schemes of the 12 Gods, but 66666 years have passed since then, and he descends to earth once again!

Yoo Sanghyun, once the youngest champion in a national archery competition and a highly promising talent, saw his dreams shattered by a tragic accident that rendered him unable to handle a bow ever again.

Now, as a fallen prodigy, he faced the additional setback of being fired from the company he had joined. In order to make a living, he took on the persona of Almond and embarked on a new path as a gaming streamer.

[You have selected the bow.]
*Swish! Thunk!*
[Headshot!]

“Are bosses supposed to be defeated in a single shot?”

His exceptional talent once again shines through! Returning as a streaming genius, he sets off on an entertaining journey of rebellion!

"Those who clear quests, shall receive everything." An RPG adventure with HCLW and his allies, set in a lucid reality.

raw:http://comic.naver.com/webtoon/list.nhn?titleId=670152

A long time ago, a portal to another world was opened, and those who acquired special abilities along with marks began to be called mages. After the incident known as "that day", the first-class mage from Ophion, known as "Blow", has become very famous. One day, he receives a very special mission: to protect the second son of the Artian family, who suffers from being called a "monster" at the magic school "Helios"! Thus, Blow enrolls in Helios under the name "Rood Krisch" to hide his true identity...

It was a ridiculous piece of fiction, one that I’d be ashamed to call a novel. Yet, that was exactly what I was transmigrated into.
Larsen Mayton.
I became that supporting character, a wretched scoundrel who got purged at the age of 17.
Now, as the writer and creator, I shall reshape the world of the character Larsen Mayton.

With his dantian shattering from a ki rampage, So WoonHwi was cast aside by his family.
After that, he was kidnapped by the Blood Cult, where he spent his life as a third-rate spy.

One day, he’s killed after being used to find the legendary Secret Records of the Sword Sage.
But instead of really dying, he wakes up 10 years in the past on the day he was kidnapped by the Blood Cult, along with the power to hear the voices of swords.

After being held in disdain and having his life put in danger, an orphan from the Demonic Cult, Cheon Yeo-Woon, has an unexpected visit from his descendant from the future who inserts a nano machine into Cheon Yeo-Woon's body, which drastically changes Cheon Yeo-Woon's life after its activation. The story of Cheon Yeo-Woon's journey of bypassing the Demonic Cult and rising to become the best martial artist has just begun.

The protagonist, who has been reincarnated into the world of a game he played extensively, has become Yuri, the third son of a villainous family!!

His father, siblings, and the entire household are the worst and most ruthless, all doomed to be brutally massacred.
As for Yuri himself, he is destined to betray the Hero as the final boss, dragging the heroine down with him to meet the worst possible death.

Not wanting to die, he decides to completely distance himself from both his villainous family and the Hero’s party, intending to live a peaceful and carefree life… Or so he thought, but now, one by one, the original story’s characters keep gathering around him…!?

From a self-declared "exile", the lone Final Boss’s journey of independence and unrivaled strength begins!!!