Immortal and Martial Supreme Master - Chapter 37 Mysterious cave

One day I got a younger sister.Only I know her true identity.

Valens Kosthal was called a genius. A prodigy. Now he has to prove he remains one, even in another world.Valens is the youngest Life Archmagus the Empire has ever seen. His mastery over Resonance allows him to hear the frequencies of the world and correct them, healing even the deepest wounds. Yet he could do so much more, if only it weren't forbidden—the little he can practice must be done away from prying eyes.So when an ancient ritual promises to reveal the truth behind it all, he leaps at the chance. It leaves him alone in an unfamiliar world, deep in a dungeon crawling with rotten skeletons and towering beasts... and a System. One that grants him the secrets of Warmagic as easily as breathing.And Valens no longer needs to hold back....................Posting Schedule: Every day for the 1st month...................What to expect?- An Archmage Isekai story- Unique magic system - Third person limited POV with MC focus- Large scope, and numbers go brr- No harem .....

[The 34th Galaxy Award for Best Online Novel][The No.1 on the Science Fiction Literature IP Adaptation Value Potential List (2023)][The Best Chinese Science Fiction Online Novel]…Have you heard?When the night is deep and silent, if you open your music player, put on headphones, curl up under the covers, and cover your head, listening to the same song on loop.After the loop has played forty-four times and you fall asleep, if you’re unlucky, when you open your eyes again, you will no longer be lying in your own bed, but will have entered a bizarre space completely isolated from reality.That space… on the surface, it appears to be places we commonly see, such as one’s own bedroom, the living room at home, the underground garage, the bathroom, the basketball court, construction sites, etc., but if you observe carefully, you’ll realize that everything is different…everything.====This is the story of an ordinary person, named Common, who after acquiring supernatural abilities, gradually transforms and grows in an alternate world, ultimately reaching the pinnacle of their experience.

What would you say is the most valuable thing in this world?