[ib Instant Bullet] Spoilers for the entire masterpiece by Kaguya-sama author! Was the rapid development caused by the termination?

Second year high school student Kuro Fukase, who believes that “everything in this world is an enemy,” is a quick fighter and doesn’t know how to take it all in, and is shunned by everyone.
Since his adoptive parents, Mr. and Mrs. Fukase, were transferred to the countryside, Kuro lives alone in the prefecture, but he has no friends and distracts himself from his loneliness by fantasizing about his former childhood friends, sisters Jushiki and Iroha.

On the night of Christmas Eve, Kuro sees what looks like a black beast destroying a Christmas tree in the city. Shortly afterwards, he sees a hand grenade dropped by a nearby girl, and Black is invited to accompany her.
The girl, whose name is Sera, has a penchant for being a hero and says, “Let’s save the world by defeating the bad guys together! And Black is forcefully told that he is the only one who can see it. Sera says that only the chosen ones can see the grenade, and Kuro succeeds in fighting off the beast.
Black exchanges contact information with a happy Sera and heads home, but the beast is right behind him.
In fact, this beast is the product of Black’s destructive impulse!

Sera yearns to be a hero and Black wants to destroy her.
“Sera, I am your enemy.
Black mutters to himself.
A girl in witch form is looking down on him from the top of the building.

Here comes the witch.

It’s New Year’s Eve. On New Year’s Eve, Black is summoned by Sera, who has been reporting daily vandalism in the city. Sera tells Kuro that she wants to punish the mastermind of the vandalism, but in fact, Kuro himself is the mastermind of the destruction.
Instead, Kuro follows her instincts and visits a rusty shrine on high ground. As they climb onto the roof of the empty shrine, their eyes are awakened by the beautiful first sunrise.
They are both impressed when a girl in the form of a witch suddenly appears.

The witch reveals that Black and Sera have an ability called “Instant Bullet” and that there are about 20 people with the same kind of power, including herself.
She also tells him that one of them is planning to drop a satellite with a nuclear weapon on the city.

The witch explains to Black that the Instant Bullet ability is only given to desperate people who are estranged from the world, and that she also knows about Black’s situation.
The witch asks Black to run away, but he falls asleep and dreams of the past.

Kuro never knew his mother, never cared for his father, and had a tenuous relationship with his grandmother, who lived with him after his father died. The only thing that sustained Kuro was the Jushiki and Iroha sisters who lived next door. Kuro, who was in love with the older Jushiki, was spending a happy time with the only two sisters who could be called family.
One day, however, Black saw a half-naked Juushiki clutching a bloody ashtray in her room, and a man lying beside her with his head bleeding.
Jushiki says to Kuro, “This world can surely end. That’s why I’m going to destroy it”. Shortly afterwards, her apartment catches fire and Jushiki dies.

When Kuro wakes up, he decides to accomplish what Iroh was hoping for: to end the world.
In order to do so, he decides to stop a satellite from falling, which is being done by someone other than himself.

Meanwhile, Sela is observing the satellite’s fall from a safe location where it will not be harmed. The witch is by her side.
She says that she had a hunch that Black was behind the recent destruction, and the sight of Black chasing after the satellite and the “beast” swallowing it convinces her that she was right.

Then the witch suddenly points a gun at Sera.
In fact, Sera was the mastermind behind the fall of the satellite.
Sera says that she dropped the satellite in order to kill the other ibs who gathered in this city to save the world.
Thus, Sera, who longed to be a hero, became evil for the sake of justice, and Black, who stopped the satellite to destroy the world, became a hero.

Japanese Azalea (Rhododendron japonicum)

The witch takes Kuro to a “secret base” in an alleyway in the city and brings him to Moroki, an ib psychic, in the shade of a tree.
There, the witch reveals that her ib ability, Laplace, allows her to see into the future, that the future she sees is absolute, and that 100 years from now, humans will die out because of the power of someone with ib abilities.

Tree-Yin is pleased to hear this, and declares that I will destroy the world, but when Kuro hears this, he counters that he will be the one to do it. However, when Kuro hears this, she refutes it, saying that she is the one who will do it.
On the way home, the witch tells Kuro that he is going to be a kind person who saves many people’s lives. On the way home, the witch tells Kuro, “You are going to be a kind person who saves many lives, and in the not-so-distant future, I’m going to fall in love with you, Black.

Later, when Kuro visits the secret base, he learns that the secret base is a space created by Moroki’s ib ability, and that it is a bookcase filled with his favorites.
Kuro empathizes with the contents of Moroki’s bookshelf, and spends time with Moroki as if they were friends.
Moroki says, “I don’t have the energy and ability to destroy the world, but I don’t care if the world is destroyed. I don’t care if the world is destroyed. As long as I have this secret base, I don’t care if the world is destroyed.

Then the shade of a tree arrives, and he and Kuro get into an argument over who will destroy the world. The shade of the tree says “I won’t back out now”, but with a painful expression on his face as if he is about to cry, he runs out of the secret base.
When Morogi chases after him, the shade uses his ib ability to create a giant vine called a “skull azalea” that completely covers the radio tower.

Morogi is worried about Tree Shade when he climbs the tower, so he comes to the tower with a “meatless hamburger” for Tree Shade, who does not like meat. The shade of the tree says, “The pollen from the flowers of this plant (Rhododendron skull azalea) will destroy the world.
Morogi says, “We can’t take the side of the tree shade (which is trying to destroy the world),” and tries to convince the shade, but the plant’s vine blows him away.

Morogi is led back halfway up the stairs by the shade of the tree and encounters Kuro, who comes after him. Morogi interrupts Kuro, who claims that he will kill the shade of the tree if necessary, by using his instantaneous movement ability.
Morogi says that he has never liked the bad-talking and bad-tempered Kigade, but he cannot let him kill her for praising his bookshelf.
In the end, Morogi decides that he won’t kill the shade of the tree because Kuro doesn’t use ib to get rid of him, so he leaves the shade of the tree to Kuro and lets him go on his way.

Kuro arrives at the shade and says, “You can’t kill everyone in the world, because Morogi has already killed them. When he arrives at the shade of the tree, he tells Kuro that he can’t kill everyone in the world because he has already killed Morogi. When he hears this, Kinin says, “Morogi was a good guy! He is furious and dismayed…..
In the shade of a tree, Black says, “I don’t think you’re just trying to destroy the world. I don’t think you’re just trying to destroy the world, but I’m willing to help you if it’s the right thing to do.
Just before coming to the radio tower, Black heard from the witch that Maria Drac (commonly known as MD), a potion created by the shade of the tree, is a potion that makes people kinder, and he suspects that the shade of the tree has something to do with it.

MD was a drug given to the dealer by the shade of the tree as a drug that temporarily made people more docile, but it turns out that “those who aren’t docile” who take it “become kinder to others”.
The dealer was so impressed by this effect that he started cultivating it to spread it to more people, and since it was so effective against the “not-so-friendly people”, it quickly spread throughout the city.

However, it was later discovered that MD was toxic. The shade of the tree decided to stop the production of MD, but the “gentle” dealers chose to die rather than return to their “less gentle selves”.
‘We want any scum to live! In front of the shade of the tree, the dealers shouted, “Thanks to the shade of the tree, we’re happy. Thank you…I’m sorry…” and they take their lives one by one.

The shade of the tree, which has been attacking the people who died from the medicine he created and his failure to be kind to his mother, who raised him by selling his body, tells Black that the pollen from the skull azalea can make a person infertile. Kokuin chose to destroy the world and to end the human race by exterminating the species.
More than anyone else, she wanted to be kind but could not be kind to others.

Hearing this, Kuro is unable to find the words to say to the shade, but then suddenly, a missile lands on the tower! That blast would blow away the shade of the trees!
It was Morogi who saved Kage from falling off the radio tower, telling him “Don’t die”.
“You may not like yourself, Kage, but we like you a lot, you know? I think everyone who got to know the real Koshin-chan was like that.
Seeing Morogi’s words, Kage cries out in joy when he learns that Kuro lied about killing Morogi.

Meanwhile, he attacks the radio tower with a missile and says, “Evil has been destroyed! And it was Sera who was happy to see him.
And beside her was Iroha, who was not Black’s fantasy!
In fact, Sera and Iroha belonged to the COLORUL, an organization whose goal was to destroy other ib warriors such as Kuro, Kage and Morogi!