Kiss Goodnight, Mr.Ji - 1627 He is here to back his wife.

In a realm rife with war and conquest, only the strong and cunning may survive.Planar travel has become the determinant of strength.Nobles and powerhouses travel the myriad planes, invading and plundering them to increase their personal strength, grow their military might and fund their endless wars.A systems engineer and lifelong web novel reader is reborn as Alex Fury—a young noble deemed talentless by his own family. Lacking his family’s bloodline powers and warrior potential, Alex is exiled to a Mage Tower.His fate is clear: master magic... or lose everything.No cheat system. No divine blessing. No hidden power.What he does have is a mind sharpened by logic, engineering... and stories.Blending the System Engineering and web novel knowledge of his previous life with the Rune knowledge of his new world, Alex Fury creates a revolutionary new form of magic unique to him...RuneTech Magic.From Runic Artificial Intelligence to an Interplanar communication networks; From Rune-powered super soldiers to Rune-crafted Power Armours (and mechas), from new energy sources to Perpetual Energy.With this marriage of science and technology, Alex will usher in advances previously thought unattainable in his new world, and his old one.This is a tale of power, rebellion, ambition- and legacy.Empires will rise to crush him. Worlds will try to deny him. But with intellect, invention- and just a spark of madness, he will carve his name into history.Witness the birth of the Rune-Tech Sage, and the beginning of a legend that will echo across worlds.

More than ten years later, this sentence gradually spread in Elbaf Continent:

Never use magic to deal with tyrants, because you will find that he will return your spells to you thousands of times after being strengthened by countless magic specialties.

This is the story of a dragon-shaped self-propelled fort that keeps doing things in another world.

There is nothing that one magic can’t fix. If there is, then there are more. ——Izawa

- Description from novelbuddy

Corporate slave Reiji went to another world one day, made one rank higher potions, and li~ghtly made a killer profit!

He used that money to open a drug store, and troubled people who heard the rumors came over…

Eyedrops for an elf troubled over his failing bow aim!

Cough syrup for the dragon that unintentionally releases his dragon breath!

Reiji makes medicine for troubled people, enjoying his leisurely slow life in a rural city.

Xie Jin is an international student studying in the United States. Because of an accident, he obtained a special ability that allows him to detect the attributes of all objects within a certain range. Because of this ability, he started from panning for gold and gradually went to the country of Bald Eagle. The pinnacle of wealth. (No abuse, no depression, logical, straightforward and reasonable road to the rise of North American chaebols)

- Description from novelbuddy