The Strongest Interstellar Commander - Chapter 8: Warp Engine.

The young lord of a small and weak country saves a dragon beside the sea one day.

In the night, cook wine with the master and discuss the way of heaven and earth!

In the snow, Yu Jian chased the tide of Guangling River!

- Description from novelbuddy

It’s a world of men.

It’s a mystical tribe.

Liang Yue crossed over as the son of the chieftain.

The whole tribe is concerned about Liang Yue’s marriage.

Every races in the whole tribe want to have baby with Liang Yue~

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.