Rise Online: Return of the Legendary Player - Chapter 106 Agreements (Part 1)

Jian Wushuang was reborn in adversity. In order to get his revenge, he began to cultivate Heavenly Creation Skill. With the help of the Heaven defying cultivation method, Jian Wushuang gradually grew into a peerless genius from an ordinary practitioner. With a sword in hand, no one is his match. Using his extraordinary Sword Principle, he killed all his opponents and eventually became number one Sword Master from time immemorial.

- Description from Novelupdates

Having trusted the goddess who promised my return to Earth, I joined the hero's party and defeated the Demon King.So when that promise was not fulfilled, it was only natural for me to desire my own fall into darkness.Harem | Fantasy | Sex | R18 | SMUT

Ning Bei worked hard to get into Lincheng University and came to the city Nan Xia was in. Nan Xia introduced him to others as: “Her younger brother.”

After returning home, Ning Bei was lying on the floor like a stray dog.

His brother Ning Nan couldn’t look at his depressed face anymore, so he gave him a kick: “Now you know that acting like a dog will end badly?”

Ning Bei closed his eyes, and said in a cold voice, “Never again.”

Ning Nan chuckled and was about to leave when the exclusive ringtone that Ning Bei set for Nan Xia suddenly rang in the room.

Under Ning Nan’s fiery gaze, Ning Bei lay on the ground for one extra second.

Then he quickly got up from the ground and ran to the phone.

Ning Nan: ?

Ning Bei: Scram.

- Description from Novelupdates

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