Sin System: Demonic Harem After Reincarnation - Chapter 137.A Noble Pussy

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?

- Description from novelbuddy

When people pass away, they often leave behind unfulfilled wishes. I will act as a force of justice, helping the deceased achieve their final desires before I return to my own world to confront and make peace with my own regrets.

What if you were transported into the world of Mushoku Tensei, a realm of swords and magic? Would you have a system?Yes.But what if this system was a facade created by the gods of that world?That would mean the tasks assigned by the system would be incredibly daunting....[Within one hour, gain the favor of the Water Saint-level Mage—Roxy Migurdia. Mission Reward: Unlock Healing Magic Slot (1/4).]“Huh? Favor? Wait, is this system even serious?”Years later:“The beloved elder brother of Sword God Eris; the husband of Magic University Dean Roxy Migurdia; the ‘Dawn’ of the Asura Kingdom; the ‘Iron Heart’ of the Boreas Family; the pillar cherished by the Dragon God; the childhood friend long adored by the Water God; the man Princess Ariel yearned for but could never attain... May I ask...”“Wait, where did all these chaotic titles come from?”“That’s how the world addresses you, Mr. Allen~”“...Is there a more serious one?”“Of course.”“Oh? Do tell.”The long-eared, silver-haired elf girl, who was conducting her nightly playful interview, suddenly dropped her smile.Her crimson eyes flickered with candlelight, like a serene lake set ablaze....“The Hero of the World, the One and Only God.”in case you want to support me (special benefits)patreon.com/roaverse (+extra Chapters)

Youth, is meant to be used to shed sweat under the sun!

Youth, is to continuously engage in battles, and secure the win! The endless journey on Heaven’s Road, an endless expedition, a testimony of a hot-blooded youth’s legend!

A dream every man harbors, with the ignition of the blood! Forever young, Undefeated God of War!

- Description from Novelupdates