Heavenly Castle - Extra Chapter 1 – Yanual who was left alone, Part 1

After dying prematurely from an incurable disease, Yuka Hikano finds himself in a mysterious realm filled with endless doors, each concealing divine gifts from powerful deities. He is not alone—others who have met the same fate of death stand beside him, unaware of the trials that await.They are put through various tests and eventually transmigrated into different worlds. But these worlds are nothing like the Earth they once knew.For Yuka, however, this apocalyptic world feels eerily familiar. It is a realm of endless war, devastation, and chaos—a world he once played in a game. Certainly not the kind of place one would wish to be reborn into.From infancy to adulthood, he must gather strength, knowledge, and allies to survive the horrors that lurk ahead. But when he awakens a system granting him a power beyond imagination, he soon realizes that blessings can also be curses.[You have gained Infinite Mana.]Infinite Mana...?What could possibly go wrong?

Every human has their Personal Jewel of power, when awakened it can either be an Elemental Jewel or Physical Jewel. They circle the right and left wrists like bracelets of power.

A passionate researcher and lover of martial arts and combat sports finds himself reincarnated in a fantastical world of Martial Art. No longer shackled by the disease that afflicted his body on Earth, he decided to dedicate his body, heart, mind and soul to becoming a Martial Artist.

What happens when a man of Earth meets an unearthly world?

What happens when science meets fantasy?

Follow Rui as he journeys through his Martial Path in a world of fantasies and tribulations.