The Kind of Evil - Chapter 4: Magic & Mana.

An orphaned boy with dreams of making it big through being a blacksmith is given a once in a lifetime chance to succeed when he's taken in by an odd pair - Eggor and Ella. While former teaches him the arts of craft, the latter teaches him the mysticism of cultivation, granting him two paths to tread in this life.

Traveling to the world of Hokage, Kamiyo Colt witnessed the chaos of the Nine Tails firsthand.Without any special powers initially, he planned to develop quietly and survive until the Infinite Tsukuyomi. However, when he first trained his Chakra, his system finally activated.The system's rules were simple:By healing others, he could gain random attributes and skills.“Heal Uzumaki Naruto to receive pure Ashura Chakra!”“Heal Uchiha Shisui to gain his bloodline talent!”“Heal Sasuke Uchiha to obtain pure Indra Chakra!”In this way, Colt steadily developed his abilities over more than ten years.During the Fourth Ninja World War, when the ninja coalition saw him suddenly knock out the Six Paths Madara with a single punch, he looked innocently back at them.“What? I'm a medical ninja. Doesn't it make sense to defeat him with one punch?”

At the beginning, he said: “Little concubine from Jiangning County, what an insult to status, I won’t marry!”

After seeing it, he tsk-tsk: “It’s so weak, it’s too weak, I don’t want it!”

When she came to the door alone with a marriage certificate, he stood leaning against the door and smiled subduedly, “Come and let me marry you? But I don’t want to marry young!”

Knowing that she came to divorce the engagement, his complexion was completely dark, and he wanted to kill someone gloomyly, “Who gave you the courage to withdraw the young master’s engagement?”

…

Su Rong felt that Princess Duanhua might be blind. This person is so pampered, how could it be worth her to die and live for him?

If I had known, when she saw him for the first time, she threw the divorce letter in his face.

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The hibiscus pillow is delicate and springy, and the hall is full of flowers drunk without knowing it. ——Su Rong

A young man in fresh clothes and angry horse walks, and his whole life is a mistake. ——Zhou Gu

Your wish is my wish, I wish to know you early, to protect you with brocade red in the jade hall, break through obstacles, cut thorns, hands are not stained with blood, clean, and I am the gentle and soft little girl I first saw.

Your wish is my wish, I wish I had known you earlier, when you were bright and bright, I was careful not to approach, frightened the sparrows, and prayed to turn into the moon in the sky, projected into your arms, to accompany you to see the flowers in spring and the snow in winter, and Changan every year.

- Description from novelbuddy

Jiang Chen accidentally traveled through and started his comprehensive journey.

The world is tentatively scheduled: Naruto – Attack on Titan – Blade of Demon Slayer – Sword Art Online – Detective Conan, etc.

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In the Naruto world, Jiang Chen obtained the apprenticeship ten thousand times return system, as long as he taught his apprentices, he could get a correspondingly high return reward.

As a reward, Jiang Chen taught Hinata the black coffin he brought from the world of the god of death to Hinata.

During the Chunin Exam,

Neji: “Abstain, Hinata, you are not fit to be a ninja.”

Hinata: “I don’t want to run away, Brother Neji, let’s have a showdown! The turbid coat of arms is faintly revealing, and the unruly and arrogant talent… The Ninety of Destruction: The Black Coffin!! !”

Everyone: “You call your brother on the lips, but you actually kill him. This girl is too scary!”

(The introduction is weak, please move to the text~)

- Description from novelbuddy