Although he still did not know exactly what this upgrade option was.
Ye Qiyan knew that it was being sold at this price because Miatila had helped him, allowing him to obtain it with only the Train Coins he had.
And according to the system, its original price was a staggering three million Train Coins.
Yet he had spent less than twenty-five thousand.
That was not even one percent.
It was a downright ridiculous discount.
Miatila was useful.
And she was becoming more and more useful.
She really seemed to care about that offhand remark Ye Qiyan had once made: "You're so useless."
So every time, she did her best to prove herself.
Ye Qiyan pressed his hand against the Light Screen bearing Miatila's name, rather than that of the Main System itself.
"Useful, incredibly useful. You're the best system intelligence, bar none."
[~~]
Miatila felt happy.
Ye Qiyan took a deep breath and swiped his card on the System Light Screen to make the purchase.
Then, as usual, he started by looking at the first option.
[Custom Declaration Whistle] [Type: Train Module] [You may freely control the train's whistle, and when it sounds, you may make any being within its audible range aware of your arrival] [You may broadcast your voice through the whistle] [Furthermore, you may modify or customize the whistle's sound]
This thing offered no boost to combat power, but it was still quite good as far as Ye Qiyan was concerned.
"A whistle, huh? No need to change the sound. I'm used to it. As for letting people know I've arrived... that might be kind of cool? Come to think of it, I remember Zhao Xi and Monrojina could amplify their voices so lots of people could hear them and things like