I was wondering why Orochimaru never killed Anko, he could have done it way back, and still, he left her in the cave, probably alive. This is my take on that
He couldn't kill her
He had the opportunity before, he had it know, here at the cave, but there was something about her, something different. It was weird; Orochimaru never had trouble killing people, except with Mitarashi Anko.
it started way before, back when he still lived at Konoha, as one of the legendary sannins he was one of the most admirable persons in the village. His sensei, the Hokague, has asked him to train a group of genins, he refused. He just hated children, they were stupid, there was no point for him interrupting his experiments just to train tree stupid kids. Tsunade and Jiraya had teams before, they tried to convince him to have one as well, he came to the academy the day the jounins chose their teams, his sensei has oblige him of course, he sat on a bench, away from all the kids. That's when he saw her, a purple haired girl, sitting away from all the kids, playing alone with what looked like an snake.
The animal jerked away from her hand and went straight to him, she followed the snake screaming
"Hey! Where are you going? I though you where my friend" suddenly they were facing each other, he looked at her big brown eyes until she broke the contact, reaching for the snake, now in his hands
"Why are you trying to steal my snake?" she said, trying to sound angry, he looked at the animal and said
"Your snake followed me" before he knew it the girl was sitting beside him, looking at the snake in his hand
"They follow you two?" she asked, he nodded and said "all the time"
"They don't like me because of that, I'm not even in a team yet" she said pointing to the other kids "they think I'm weird and they never talk to me, but, sometimes... well, many times, snakes are better than people"
He could relate to her, way too much, it was amusing; he has never met someone who shared his connection with snakes "how old are you?" He asked "9" she said simply, clearly not paying a lot of attention, she was know running around, chasing the little snake
"And you don't have a team yet" he said more to himself than to her, that's when he quickly throw a kunai to her, before he knew it she toke another kunai from her pocket and blocked his saying
"Hey! Why you did that? you want to fight?" she adopted a fighting position, that when he knew she was perfect, he stood up, walked to stand in front of her and say
"It was just a test, you passed it, if you accept, I offer myself to be your sensei" her face light up with a big smile and she said
"No team?" he nodded, trying to hide a smile
"Of course I accept, wait until the other kids know that Orochimaru the sannin it's my sensei!" this toke him by surprise, she knew his name, she knew he was a sannin, and she has offered to fight him earlier, she has courage and he like that
"Ok then, would you tell me your name?" he said
"Mitarashi Anko"
So… this would have a few more chapters, I would tell this story from the eyes of other characters, so it would last a few more chapters.
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