Stand User in Marvel Universe - Chapter 1: New Life

Disclaimer:The characters, settings, locations, and images used in this fanfic are the property of their respective creators and/or copyright holders.This fanfic is a non-profit work, created solely for entertainment purposes, with no intention of infringing any copyright.—Synopsis:Aiden was killed by a woman who stabbed him for unknown reasons.Upon losing his life, he encountered a mysterious cosmic entity that offered him a deal:Protect a world from invaders for 100 years, and in return, receive a second chance at life.Without hesitation, Aiden accepted the agreement.For a century, he fought bravely to defend that world.Finally, after fulfilling his part of the deal, he left that place behind and moved on to a new destiny, now with the incredible gifts he had acquired over all that time.—Main World:High School DxD and some slice-of-life anime.Other Worlds:- Isekai wa Smartphone to Tomo ni—Tags:#Date A Live#High School DxD#Isekai wa Smartphone to Tomo ni#Neutral-Good Protagonist#Faction Creation#Sacred Gear Creation#Harem#No Yuri#No Netorare / NTR#Parallel World

God's Seal Cathedra Rex, Part Two!Two sons of the dragon, each different; a genius elder brother and a good-for-nothing younger brother, who despite being identical twins, are worlds apart. However, they share an identical desire for peace. On the night of their birth, the moon was high in the sky.

This was the great era of vast warships and the Star River, a time when the multi-universe was shattered and countless Cosmic Fragments were scattered across the void, forming the boundless Shattered Starry Sea.Immortal Domain Dao soldiers, mechanical gods, golden giants, wizard Dominators…An endless array of strange civilizations.Starry Sea Oddity, Genetic Potions, exoskeletal armors, Floating Land Origin…Treasures that could be found everywhere.Spectral Shuttle, Spectral Airship, Spectral Warship, Escort Ships, Battleships, Star-Annihilating Starships, hyperdimensional mother ships…The clearly stratified Xinhuo warships.Song Chi held a Zhu Tian Ruins Market in his hand and engaged in interstellar trade with the countless peoples of the Starry Sea.What? Titanium Crystals are worthless in your Star Domain? I’ll take them all, damn it, this is a strategic resource!You call this a chunk of iron? This is Mixed Elemental Copper, the ultimate Enhancement resource!Ordinary ship cannon? Isn’t this a golden Star-Annihilating Cannon? Quick… I’ll buy it!…Stretching across the stars, starting from the flame of human civilization.

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?