MTL - As An Immortal, I Only Learn Forbidden Skills - Chapter 139 Success in alchemy

It is twenty-two years before the Battle of Yavin, and the galaxy is at war.Born to a not unimportant, not important planet in the Inner Rim, Rain never placed much thought into his future. After all, the galaxy is vast, and peaceful living should not be hard to find. Two decades later, armies are marshalled, and warships grace the stars, propelled aloft the wings of war. Armed with the knowledge of nine movies, Rain is forced into joining the galactic conflict. On the losing side.*AU with many, many POVs; don't expect a casual self-insert flick

“Listen up, my obedient disciple, it's time for you to descend from this mountain. Your master has arranged a marriage for you with a stunning beauty, and it's quite a steal!”With those words, the master absconded with the dowry, leaving Lin Chen feeling both aggrieved and furious. Determined, he descended the mountain to find his betrothed.However, fate had other plans, as he was waylaid on the road by a captivating woman who insisted he play the role of her fake boyfriend. To make matters even more bewildering, this woman bore an uncanny resemblance to his intended bride!

Jiang Bai woke up one day and found with shock that he had transmigrated to a parallel world that is similar to Earth. There, he was granted a cheat system to help him forge the path of a tyrant in this new world. He was now stuck in this parallel world body, the body of a weak and cowardly person. Join Jiang Bai as he rose to the top in this new world!

- Description from Novelupdates

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.