Cultivation is just so scientific! - Chapter 13 - Encounter with Immortals

A master of Chakra Cultivation sacrifices everything - only to be reborn with a second chance.After giving his life to save his world, Alaric awakens in the body of a child. In this new realm where power is measured in tiers, bloodlines, and the strength of one's oaths, Chakra Cultivation is an unknown path.As Alaric purifies his chakras, each one unlocking profound abilities across body, mind, and soul, he gains an edge no native warrior can match. But his true test awaits in the Tower of Trials—a rite of passage for the world's young elites, offering immense rewards to those who can climb its treacherous heights. No one has ever reached its highest levels.If mastering his reborn powers wasn't hard enough, his journey will forge a bond with an entity of unimaginable strength - and lead him to lands where no mortal has dared to tread.

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Daytime belongs to the human world, while Deceit Night returns to the netherworld.Since the arrival of the sinister night, demons and evil spirits have brought disaster to humanity, and generations of our ancestors have struggled to survive.This blade of mine can eliminate evil, slay demons, defeat wickedness, exterminate devils, destroy evil!From now on, nighttime shall be like daytime!

Traveling through the world of cultivating immortals, Su Yu became a collateral child of an ordinary cultivating family, with nothing but handsomeness, mediocre cultivation talent, and mediocre life experience.

Fortunately, Su Yu brought the game proficiency panel he played in his previous life, ignoring all restrictions such as spiritual root comprehension, as long as he practiced from nine to five to accumulate proficiency, he could improve his strength.

If you live ten thousand years, you can become a fairy or a ancestor!

The Tianjiao of the Zongmen and the powerful ancestors are just passing away, only cultivating immortals… oh no, only the proficiency is eternal!

- Description from novelbuddy