After the destruction of the Sanzu Harbor, and further compounded by the accident at the Hakurei Shrine station. Safety has become a primary concern on the Gensokyo Railway. One of the new features brought onto the railway was something called the Automatic Warning System. The AWS is a warning system that rings a bell if an engine passes a signal set to 'danger'. Usually the engines are all well and good with the AWS, as they always stop at when the signal tells them to. But one engine in particular hates the bell ringing in his cab, it was Akemi. He complained endlessly about the constant noise that was made in his cab.
"I hate it! Every time I go to a signal, that ringing noise keeps on going inside my cab!" he complained one day.
"If you weren't rushing through your work, you wouldn't be hearing it." said Shiro.
"Ugh!" grumbled Akemi, but he said it under his breath.
The next morning, his driver was introducing Akemi to someone new.
"This is Shigeru, he is a human and in need of work. I'm to teach him everything that there is to know about driving a locomotive." his driver said.
Akemi didn't mind the new driver, that is, until he got to driving him. Shigeru was new and he was rough with the regulator and tough on the handbrake. Every time Akemi stopped, he seemed to jerk to a stop. When he stopped at a signal with a heavy goods train, he jerked to a stop and the trucks jerked back and pushed Akemi, just far enough to trigger the AWS.
Ring! Ring! Ring! Ring! Ring!
"AUGH! STOP IT!" Screeched Akemi.
"Fine, fine." said his driver, and she told Shigeru to press a small button on the side of the AWS display, that stopped the ringing.
"Oh thank gods!" said Akemi, relieved.
The next day, Shigeru was to drive him, alone. He climbed into Akemi's cab and started him up. Akemi noticed that he was a little less rough with his controls, but he still jerked about when he stopped. But Akemi also noticed that every time the AWS was triggered, Shigeru would press the button and the ringing stopped.
"Don't get used to pressing that button." warned the firewoman.
"I don't your advice!" said Shigeru, "I can handle this engine fine!"
"Suit yourself, I guess." replied the firewoman.
On the next day, Akemi's usual driver had fallen ill and Shigeru was to be his relief driver.
"Oh crap! Shigeru's back." thought Akemi, "At least I'll have a silent run."
Akemi went to get his morning goods train and made his way to the mainline. Akemi was trundling along the line, until he saw a signal set to 'danger'. The AWS rung and Shigeru, like a well oiled machine, pressed the button.
"But I thought the signal was set against me?" thought Akemi, now worried.
"Driver!" he called.
"What is it?!" said Shigeru.
"I think we passed a 'danger' signal!" said Akemi.
"Don't worry, Akemi. I got this."
Shigeru continued to work the controls until he heard Akemi yell.
"STOP!" cried Akemi.
Shigeru jumped and he applied the brakes hard. Akemi slid on the rails and nearly crashed into the back of Cobol's train. Cobol stopped as well, as he heard Akemi scream.
The Scarlet Controller was furious, "Akemi! What happened here!" she said, angrily.
"My new driver didn't see the signal." said Akemi.
The Scarlet Controller walked over to Akemi's cab and asked for the driver to come out. Shigeru climbed slowly out of the cab, muttering apologies under his breath. The Scarlet Controller saw that he was a human and she grinned evily.
"I see that your a human." said the Scarlet Controller coldly.
"Y-y-y-yes I'm." Shigeru seemed to know who he was talking to.
"Give me your arm." the Scarlet Controller said in a cold calm voice.
Shigeru slowly outstretched his arm, he was scared. The Scarlet Controller bit down on the middle of his arm and started to suckle on the cut. Shigeru held in his scream and gasped once the Scarlet Controller removed her fangs.
"Hopefully, human, that will teach you to cause an accident. We have those safety features for a reason. We will not have humans like you disregarding them." and with that, the Scarlet Controller left.
Shigeru made sure he look at the signals from now on. Akemi also learned the importance of the AWS, and never complained about the ringing noise ever since.