Korn: The last time I saw you like this, was when you were dating…
Kinn: Tawan.
Korn: In the past, I had a lucky knife kept with me, very sharp. It could even split a coin. But I liked to use that knife to cut an apple for your Mama. The next thing I knew, the apple juice got the knife all rusty. It never could cut anything ever since. Do you understand what I’m saying?
Kinn: Yes.
Korn: Come back to your old self soon. Our family is waiting for you.
From the series Kinnporsche – Season 1 Episode 7: ‘Episode 7’ (1×07) | Produced by Be On Cloud
Quote meaning
Korn is making a metaphor, in short it could be something like: “Relationships make you weak.” Everyone keeps saying that Kinn has been cold, but with that also very efficient at his job. Now being in love with Porsche, they can “see in his eyes” that he’s going soft. And Korn, grooming Kinn to take over as a big mafia boss, wants him to be ruthless.