Well, unusual story, no Mary-Sue, please R&R!

Nashira, a young girl who decided she'd rather live in the woods, away from the loud cities – it was her house. That day she was off for her weekly shopping.
The first weird thing she noticed were footprints on the sandy path leading to her door. The second a Nazi armband lying next to her doorstep. The third, her door open wide.
"Robbers! Oh, no! Why didn't I come back to check if I locked the door…" she was sure she'd find all her furniture turned over, her money and valuables all gone…
But no, everything was intact. Anyway, she had nothing to protect herself with. If there's someone dangerous here… I must reach the bedroom, to get my…
But, as she arrived there, she found the "robber"… and she no more felt the need to reach for what she actually came in for.

Schrödinger woke up to soft petting at the base of his ear, where he used to love it so much. He winced and shivered. The Major, he thought. Half asleep, it took him a while to get that if the Major was there, then his running away obviously didn't succeed.
But when he understood it, he jumped up at the speed of light.

"AAAH!" screamed Nashira.
"AAAH!" screamed Schrödinger, thinking someone evil had captured him.
It was hard to tell which one of the two was more scared, as they stared at each other petrified.

The Major looked at his watch, then sighed and decided to go and plot something evil. Schrödinger would be back. He would always come back…

"Euh…" Nashira stayed close to the wall, her deep brown eyes staring confusedly at the catboy.
Schrödinger could have simply disappeared and get out of there once and for all. But he didn't. No, it was not the girl, for he still couldn't get what was that whole man&woman thing. Just that, as he quickly thought it over, this was probably the last place the Major would consider seacrhing, when trying to track him down.
"I'm Nashira…" the girl's voice woke him from his thoughts.
"Schrödinger" he replied, staring at the pavement.
"Oh."
Silence fell, until Nashira broke it again.
"And your first name?"
Schrödinger tilted his head.
"Just Schrödinger. That's my full name."
"Oh."
By then, the catboy had loosened up a bit. But Nashira still stood firmly against the wall.

She was embarrassed, remembering the moment she had seen him sleeping peacefully on her pillows. His shiny blonde hair, and cute cat ears… she instinctively began to pet him. He looked so sweet…

"Is he back already?" the Doctor asked a guard in the lab, while trying out some new dangerous liquid in test-tubes.
"Who?"
"That stupid cat! Junior Warrant Officer Schrödinger!"
"Haven't seen him."

"Is this yours?" Nashira, who finally seemed to have calmed down a little, showed up the Nazi armband.
"Was." Schrödinger replied. Nashira caught the hint and quickly put it away.
The next moment, his stomach growled so loud the girl couldn't hold back a giggle.
"Hungry?"
He shrugged.
"Come with me."

Later that evening, the Major walked back to his seat and automatically reached down to pet Schrödinger. His fingers touched only air. He mumbled something, then laid back.

Little did he know that his "kitten", that same exact moment, was busy gagging down the last portion of the about 10 fish plates Nashira gave him.
His ears flopped up and down, and he often had to remove some locks of blonde hair from his hazel eyes.
He barely noticed how Nashira was kind. He would have found it hard even to describe her. The maximum would have been um, has brown hair…. She actually had shoulder-lenght dark brown hair, but that wasn't the point.
Schrödinger didn't notice the way she slowly picked at her own food with her fork, eating half of one single dish while he had finished with 9 and got down to the 10th. The way she looked at him, as she shivered each time (few ones) she caught his gaze. Her dreamy stare.
Truly, he was the cutest boy Nashira had ever seen.
It was fast – but she already had a crush on him.

He stayed the night, totally naturally taking his clothes off and going to sleep in Nashira's bed. She slammed the door when she saw him undress, but later she silently watched him sleep for a while, under the covers, then went out and laid down on the sofa.

"Doctor, is he immortal?" the Major stepped angrily in the lab.
The Doctor turned back angrily.
"What, isn't he back yet?"
"Nein."
More than a day had passed since his last "death".

Schrödinger, after a long sleep, felt much better than the day before.
He walked out of Nashira's room, to find some brand new clothes instead of his uniform. He shrugged and put them on.

"I left them" later that day, Nashira asked him about his past.
"You were strong to make that choice" and she petted him. He purred for a slight second only, but it was enough for Nashira to day dream for six hours in a row. They sat beside each other, and suddenly the girl pulled close to him, and laid her head on his shoulder. He felt somewhat confused, but let her do so.

He still didn't understand.

A real, intact Nazi uniform, even with the armband!, thought the old man, owner of a small antiquity shop in the city. Nashira had sold it, two days after Schrödinger's arrival.

Back at the Millennium, the Major and the Doctor couldn't decide whether to be worried or angry.

They needed to find him to punish him and put him back to deliver messages.

Nashira had found him, and decided to love him, whatever will happen. Her crush grew stronger with each passing minute in his company.