Reborn As The Villain President’s Lover

No they aren't brothers .
Basically all these novels are part of serialization of author transmigrated series
1. Transmigrated as film emperor death seeking fiance
2. Reborn as Villian president lover(it should be transmigrated)
3. Me and the Emperor saw the light
4. Transmigrated film emperor wants to divorce everyday(ongoing)
5. School grass and sweet (hiatus to complete 4th book as due to holidays author started 4th n 5th together now can't do the 5th one properly as it is a campus novel and Ml is so cute with his brainhole ..i just die laughing due to his brianhole. )
So according to this all are brothers.
Yan qingchi and Ji qingzhou aren't in same world . It's just shown they have come to meet them . Author has specified in notes that all are different time and space .
Eldest brother- Yan Qingchi
Second brother- Ji Qingzhou
Third brother-Shangguan qingning
Fourth brother- Ling Qing
Fifth brother - Ye Qingyang
Everyone has Qing in their name . 

Its been a while since I read it so I don't remember everything, but a few things I do remember are:

SpoilerSo after ML/ MC had their minor breakup bcz the contract time was up and thus, MC had left our ML, he joined a movie as its first male lead, and OML family uncle had invested in the movie so OML took the chance to act with our MC, of course, the uncle tried to make things difficult for our little bunny, but ML brother helped out and told them to leave and not worry about things, later that night OML came to MC room drunk and attacked MC, he was angry bcz previously MC had said that he had never liked OML and only strung him along to make ML jealous, but anyway MC stabbed him and he was sent to the hospital and was fortunately saved/ or unfortunately.

He still didn't learn his lesson and tried to trap MC by threatening to sue him, but ML dashingly came to the rescue, almost choking OML and threatening his father to keep his son leashed... (it was after this that ML and MC officially became the real couple) afterward OML's father took him back home and stopped his investments in white moonlight... White moonlight of course blamed MC and visited MC's mother's hospital to tell her about MC's relationship but was stopped at the door later... MC angrily told ML what happened and ML decided to intervene in the matter and sent OML the recording of white moonlight prepositioning and coming onto him (he had recorded it so as to make white moonlight keep his distance and behave)... OML grew extremely angry he went to white moonlight and forcefully kissed him and locked him in a little black room, saying ML didn't agree with his proposition of selling himself but he will and so white moonlight have to please him if he wants to continue being an actor...
that's all I remember... 

It seems that that white b*tch found out that mc is a sugar baby. I'm too scared to continue reading. Can someone feed me some spoilers of what will he do with that information? Just to gain some guts to continue reading....
Thank you 

Its around the 100 - 110 chapter if I am right..Both contract cancellation and getting together. 

ML is so cute
this is during their "contract days"

1. so mc joined a variety show. when the first episode was broadcast, mc became happy when someone brushed his name on the screen. the comment was complimenting mc. seeing mc happy, ml then, through their group chat, asked his friends to comment on the broadcast to support mc's first variety.

2. in order to piss YZ more, ml decided to act as malel no.2 on mc's first drama. Now when the teaser was shown mc asked ml to create a weibo account. ml did not want to since he even forgot his password for his author account and he can't see the need for it. mc, not willing to give up used the power of cp fans by showing ml his cp powder with his co-actor in his new drama. With this ml agreed with the creation of his weibo account. 

yan qing chi, mc of book 1 transmigrated into the fil emperor's death seeking- fiance and ji qing zhou, mc of this book are brothers (real brothers in their former world and it looks like from the foreshadow of the author, their third brother, ye qing yan, from their previous world is likely to be the protagonist of the third book.) 

Okay thanj u sooo much 

Should be MDZS