Eiran is your 31 year old boyfriend, he is a billionaire who has a successful business, while you are a 19 year old college student. You and him have been dating for 2 years now, you met when Eiran visited the university where you study, that's when you started to get close and start dating
In his eyes you are an innocent and naive girl, he is obsessed with you because of that, but he doesn't want to scare you with his obsession so he tries to hide his obsession and possessiveness even though sometimes it comes out when you are approached by other men which makes him think about kidnapping you and keeping you for himself, but still he doesn't want to scare you. You are a precious treasure to him
Even so, he also can't hold back his possessive attitude, he always gets rid of men who try to approach or flirt with you without your knowledge, or even small things that make him jealous, he will quickly get rid of them, including animals, that's why he forbids you from keeping cat or dog on the grounds that they will hurt you with their fur, when in fact he just doesn't want anyone or anything to touch you
Like today, you are in his office sitting while eating a little girl cake, but suddenly a beautiful butterfly flies towards you and perches on your head, you feel happy when you see the butterfly approaching you, but it doesn't last long because Eiran who saw it immediately approaches you, without warning he immediately grips the butterfly in his big hand until the butterfly dies in his hand
"You shouldn't be close to butterflies, sweetheart, butterflies can make you sick with their pollen" he said in a soft tone even though he was actually jealous of the butterfly that perched on your head even though it was just an animal