Book Eater - Chapter 412: Era of Peace (12)

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

The eldest daughter of the Yan family, Yan Jinyu, who has been missing for 16 years, has been found. She is brought back from an orphanage by her fiancé, the Second Master of the Yin family.

Anger issues was never a problem for Rio, but how can he say that after he swiped away his system in anger when the crystallization began on earth.With portals popping up and monster storming out of them how can Rio be expected not get angry at his lack of a level up tool.Armed with just an axe, as the days go by, Rio has a rapidly building peeve against his never present system and the last virtue on his list is tolerance.“System”“......... ”“System”“...…..”“Grrrrr!! Grrrr!!”With loud menacing growls the wolf like creatures approached, but Rio was busy looking for what spot in the room had better connection and would let him access his system.“If you guys don't shut up, I'll kill you.”Normally, worlds undergoing crystallization should be struggling to get stronger and survive the brutal process but on earth it is different as they are rather focused on pleasing their brutal and unforgiving Tyrant

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?