@pixiie.pawz
Don't worry, you're not an idiot.
Since Seungho had enemies, they thought it would be a good idea to steal his lover in order to punish him or bring him down a peg. Na-kyum is hurt in multiple ways by these people, so Seungho shows* up and ends them in a big red mess. Not just once, but multiple times throughout the story. The latest kidnapping of Na-kyum was the worst because he was thrown in the sea and nearly passed. Seungho's father wants to punish him by using Na-kyum, pressuring him to confess to all of Seungho's vengeful sprees in order to save his life. I'll try my best to explain if you have any other questions. 👍
