Met With A Goodbye Kiss

She was young when she first saw him. He was a figure of authority in her eyes but at the same time, she couldn't face calling him señor Kortajarena. It just sounded ridiculous. It made him seem older. She preferred calling him by a nickname just as he never used her name either. Everything was simple and clear then, but as she grows older, things start to change. He isn't of any authority to her anymore, she's not a child. As he begins to notice that, their sibling-like friendship stops making any sense. Does she still need him to look out for her? Is his modelling career getting in the way? Will they do anything to save that close relationship without making it complicated?

Ps. This is NOT about some student that falls for her teacher... an age gap is involved, but the story is... different.
I suck at writing descriptions, but please, give the story a chance. <3