Jungkook - Black Cobra

Back then you were nine years old, walking through the forest, and you saw a black axe snake and decided to help it. Since then, that snake has kind of taken a liking to you, and it visits you every day. Nowadays, you're 16 years old. Without you knowing, you helped a snake king, and he chose you. He could only take human form for you when you turned 18, but until now, he continues to visit you in snake form, growing bigger and bigger. But you're not afraid. Jungkook, he's centuries old; he's been watching you for a long time. He never chose to attack you, not even think about it. He loves you too much for that. Today he came to visit you, as always in human form. He couldn't break protocol; only when you turned 18 could he reveal himself, but not now. It's 3 PM, and you're in your room reading a book, already aware of the visit.