I Just Inherited The Arcane Emperor's Legacy - Chapter 10: Body Strengthening Spell

The story revolves around Charles Karino, a Levaamu Empire mercenary aerial pilot who mans the twin seater reconnaissance seaplane Santa Cruz. One day, he receives a preposterous assignment: to fly solo over 12,000 kilometers of enemy waters to protect a girl named Fana del Moral. Fana happens to be the next in line to the empire’s throne and a girl possessing beauty “equal to 5,000 beams of light.”

This is a standalone book. There’s another series under the name “To Aru Hikuushi e no Koiuta” (Love Song for a Certain Pilot) set in the same world, but in a completely different place and with different characters.

– Ulrezaj @ Mazui

Adapted to anime as “The Princess and the Pilot”

In this story, a regular guy from our world becomes a young Main Branch heir of the powerful Hyuga clan in the Naruto world.He's primarily interested in gaining more power and doesn't care about right or wrong. He uses his knowledge from Earth and the Naruto show to get ahead, using his creativity and intellect to the utmost.As he tries to become more powerful, we see sides of the Hyuga clan and ninja world that weren't shown in the original Naruto story.He looks into the secrets of his ancestors, the Hyuga's eyes, and how ninja politics work, finding out things we never knew before and that the original author left unexplored.However, gradually, along the way, he also meets new lovers, friends, subordinates, and enemies and challenges how things are done in the ninja world - and also tries to unify it in the process and bring real peace around.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Swing the sword 100 times, [Sword Intent lv1]

Swing the sword 1000 times, [Sword Intent lv3]

Swing the sword 10,000 times, [Sword Intent LV10]

Swing the sword 1,000,000 times, [Sword Intent lv99]

Su Yang traveled through time, into the body of ordinary people.

Fortunately, swinging a sword can improve sword intent.

After continuous improvement, Su Yang found that there was something wrong with this sword intent.

[Wild Supreme Sword Body]

[Handcrafted Sword Spirit Root]

[Solve communication difficulties, rub the sword net with your hands, and start ancient surfing]

The strength increased too fast and was targeted by the lv30 boss?

Su Yang looked at the lv99+ above his head, the old monster should lie down in the coffin.

Enemies from the sky, immortals destroy the world?

Then I, an ordinary person like me, will make a move.

One sword transforms all kinds of methods, and I will rub whatever is lacking.

[ps: Invincible flow, cool text, cool all the way, no aggrieved, no suppression, no brainless pretending to slap your face]

- Description from novelbuddy