Air's manga / #Slice of Life(1710)

https://m.ac.qq.com/comic/index/id/648479 Older brother got into a fake marriage, Yi chen finds himself in bed with brother. Dies in accident and reincarnated into a game / other world where he must get his brother and (Ex)lover together / need to break up with his lover and bring him to his brother. Same names but different bodies/scenario: Protagonist = Ye chen (older brother) Younger brother = Xiao Yan (Ye Yan): In love with Older Brother Ye Chen Shen Qichen (the uke to the system/story) :Ye Yen is the ex-boyfriend of Shen Qichen/ task is to get the brother and Shen Qichen together. YuanYuan - Fiancee (fake) of Yi Chen

-- 1.) Kousuku Program -- 2.) Sokubaku Program (Jealousy Program) -- 3.) Koibito Program (Lover's Program) -- 4.) Netsuai Control (Ardent Love Control) -- 5.) Gouman Ouji (Kousoku Program spin-off)