Marriage First, True Love Later Novel - Chapter 169

This is the story of a young man who was reincarnated as a dragon with a near-insatiable curiosity. Initially sparked by questioning his own reincarnation, he quickly gets lost in the endless world of magic, using his deep understanding of advanced sciences to learn the laws and properties of a new type of energy known as mana.However, soon enough, the table would flip, and he would begin using that very same energy to expand his knowledge of science, to the point that he would begin questioning his own understanding of the world.Although not his original intention, with the combination of his intelligence, expanding curiosity, and the 'miracles' that occurred to allow for his existence, he quickly found himself climbing the mountain of strength as if it were a small hill before eventually climbing to a point where it seemed as if he himself was the peak itself.Even if.. that was never the case...There is mild gore, and profanity is 'censored' toward the beginning, but not later in the story.

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

My name is Lux, and I have traveled to the space-time matrix consisting of seven parallel Naruto worlds. The system shows that once the unification of the seven Naruto worlds is completed, I can instantly become immortal and live forever.The mission is very difficult, but luckily, I can cheat a little.So, I decided to take Senju Hashirama to see how Tobirama dies.Bring Madara to witness how his heart is ripped out by Black Zetsu.Show the young Hiruzen how he is killed by Orochimaru.Take Minato to see how Naruto is ostracized.Take Tobirama to see how the Senju and Uchiha Clans are wiped out.Maybe I can capture Boruto and return to see Naruto at his peak during the Fourth Great Ninja War?

The paramount existences among daemons are known as ‘Great Sages’.

A young man leaves the mountain village and wanders the world, entering the legends step by step, becoming a part of mythology itself.