MTL - My Runes Can Be Upgraded - Chapter 15 Rune Master

Julietta, born as an illegitimate child of a nobility, is raised in an opera theatre to hide away from the eyes of the noble’s main wife.

The mortal body, metamorphosis, longevity, immortality, and eternal life. These five realms, step by step, reveal themselves in front of you. As a normal person, how can one try step by step to reach and open the door to eternal life?

Between the heaven and the earth lies the mortal body, the mysteries of metamorphosis, freedom of longevity, the power of immortality, and the hope of eternal life. A story filled with endless new magic, a new world of immortal styles, people, demons, gods, fairies, magic, kings and emperors. A world of love and hatred, revenge, and mystical battle, all in “Eternal Life.”

- Description from Novelupdates

Daniel is just a regular blue collar Maintenance Mechanic working for a manufacturing company. As he's winding down at home from a day of messy work repairing a CNC mill, he is surprised by a sudden glow of light beneath him. And, in an instant, his world changes. Literally.Daniel finds himself now in the world of Zenkon, a world of fantasy beings and monsters, swords and magic, and perilous threats to the safety of the world. As if stepping into a fantasy light novel or video game, he has been apparently summoned by a sacred magic spell that requests a hero from the gods, and in reply, they sent Daniel and a young Japanese man named Rikuto.However, Daniel's luck doesn't seem to be good, as it's quickly discovered that, contrary to the nature of living things in the world of Zenkon, Daniel is the only one that possesses no magic or mana, making him immune to many types of magic, both beneficial and detrimental, but not protecting him from direct harm.As such, Daniel will now have to find his way through this world using his own repair and manufacturing know-how, while Rikuto uses his own modern civics and economics knowledge to try to recover the Kingdom of Mornistae in the midst of a large scale global war.Why were they summoned, and by what wisdom did the gods choose to send 'Divine Heroes'; one with magic and the other without, to a world of which the foundation is magic?