My Mother-in-Law is Reborn [Seventies] - Chapter 10: Watching the Fuss (Part 1)

This story is about a man named Putra Indra Santoso who reincarnated as Huo Yuhao. Witness his journey in Douluo Dalu's universe where he discovered and fulfilled his ultimate goals.My Grammar is not the best, but hope you guys like it.(An: I don't own anything besides my OC)

After Lin Qi married into the Huo family, the entire Huo family was eagerly awaiting her to give birth to an heir for the ailing young master.She originally thought that marrying Huo Tingdong meant she was destined to be a widow, never expecting that her vegetative husband would suddenly awaken.Overnight, with a divorce agreement, she became a discarded woman of the wealthy family but suddenly disappeared from Beijing.Seven years later, she returns with two powerful sons by her side, with countless people lining up wanting to be the stepfather of these children.The most regrettable thing Huo Tingdong ever did was to force that little ancestor to sign the divorce agreement. To win her back, the once all-powerful man poured his heart into appeasing her, pampering her to no end, but the two sons were determined to be his biggest obstacles.Eldest son: “Daddy! Your posture while kneeling on the washboard isn't as handsome as mine!”Youngest son: “Daddy! Your speed at swiping cards isn't as fast as mine!”Huo Tingdong never expected that the biggest hindrances on his path to win back his wife would be these two little treasures!

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?