One Piece: My Crew is from Other World - Chapter 13: Encounter with Kuina

The path of longevity is loneliness, it is solitude, it is the unbearable cold of being at the summit.Reborn in a different world filled with hidden dangers, Song Changsheng fortunately obtains a mysterious Daoist Scripture:Breaking through to Early-stage Qi Refining, he obtains the “Yin Yang Profound Flower Scripture,” absorbing Sun and Moon Essence, cultivating both Yin and Yang.Breaking through to Mid-stage Qi Refining, he obtains the “Breath Concealment Technique,” concealing his aura and obscuring heavenly secrets.Breaking through to Late-stage Qi Refining, he obtains the “Water and Fire Manipulation Technique,” and the world's water and fire become his vanguards.Breaking through to Qi Refining Great Perfection, he obtains the “Delusion-Shattering Pupil Technique” to see through confusion and trace things back to their source.Breaking through to Early-stage Foundation Establishment, he obtains the “Five Beasts Body Refining Technique”...

I started off as nothing, just a mass of consciousness that slowly evolved. Just your average overpowered existence hungry for a multiverse adventure.

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian

Young Chen Xiang had a fateful encounter with a goddess & demoness and received their peerless heritage, divine pulses, ultimate martial arts, and transcendent alchemy techniques, which gave him an easy ride in his journey of cultivation.