MTL - Rebirth 2002: Nano Life - Chapter 21 Meet the disabled girl again

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

Xuan travels to another world, and everyone can be reincarnated into another world once for free on the day they turn eighteen, until the end of life.

After each reincarnation, you will be evaluated by the True Spirit Pagoda and get the True Spirit value.

The true soul points can be exchanged for the income of the reincarnation world, such as: exercises, medicines, weapons, etc.

And Yang Xuan, carrying the one-click tracking and one-click full-level system, started a crazy journey of reincarnation.

…

Initial world: normal world

One-click tracking: Find the national martial arts boxing method, Bajiquan.

One-click full level: Bajiquan, full level!

Break through the void and see God is not bad!

…

The second reincarnation: the world of low martial arts

One-click Tracking: Nine Suns Magic

One-click full level: I Ching washes marrow, all diseases are invulnerable, diamond is not bad, life is endless, good fortune is pure yang

Pure Yang physical body, great master of good fortune.

…

When others are still trying to reincarnate into the ordinary urban world,…

- Description from novelbuddy

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”

The unparalleled Demon King Ye Xuan, who was able to heal the death or the living alike and holder of the medicine Holy Scripture, was betrayed and killed by his fellow Demon Kings. But he reincarnated into the body of Ye Xuan, the prodigal son of the Ye family and vowed to himself that he would return to his peak and take back everything that belonged to him!

- Description from Novelupdates