An extremely brief summary of chap 1:
First scene is basically uke as the class rep supervising the seme over his homework, seme jokingly mentioned that uke must really like him alot to do this in his free time, shit hit the spot. Fast forward to present, seme is the son of the company, uke was a stand in for the other guy (he had to leave the company for a bit), 'the troll translation's boyfriend'. Uke's change in character is due to seme's rejection back then in high school, he just chose to not give a shit anymore to please others. Also in the last part, uke was saying that if the seme wants to try it out with guys, uke would go along with him.
Links for Chinese raws: http://www.fmhua.com/manhua/4533/
You can probably guess what happened in the pics even without translation anyway.
Might put up a mini summary of what happened if I remember to do it in near future.