It started as an unhinged horny copypasta for Hikari from Blue Archive.
CHOO HOO 🚂🚃🚃 my milk train is going to multidrift into their tunnel!!. 😭😭💢💢 Oh noo, the train is shaking! Its going to spill its contents! 😰 Requesting emergency stop inside tunnel to "safely discharge" he cargo! ÆUOOH 😵😵💢💢