While I agree that it was rushed and somewhat confusing, please let me sum it up as much as possible. Spoilers...
Seme was hired (the company he worked for) by uke's older brother to basically destroy the uke. Seme rapes uke, changing him from Alpha to Omega - part of the brother's plan. Family drama. Seme and uke were best friends as kids but when uke got adopted he was given a drug that erased his memory. Seme waited for the uke but didn't know why the uke forgot about him and wanted revenge. Seme loves uke but is angry. Seme figures out that uke's memory is messed up and gives up on his plan but saves uke when the brother tries to expose him as an Omega. Uke ends up as the family head and runs the family companies but misses the seme. They find each other again and live happily ever after.
While I agree that it was rushed and somewhat confusing, please let me sum it up as much as possible. Spoilers...
Seme was hired (the company he worked for) by uke's older brother to basically destroy the uke. Seme rapes uke, changing him from Alpha to Omega - part of the brother's plan. Family drama. Seme and uke were best friends as kids but when uke got adopted he was given a drug that erased his memory. Seme waited for the uke but didn't know why the uke forgot about him and wanted revenge. Seme loves uke but is angry. Seme figures out that uke's memory is messed up and gives up on his plan but saves uke when the brother tries to expose him as an Omega. Uke ends up as the family head and runs the family companies but misses the seme. They find each other again and live happily ever after.