REXD-551 "I'm from Tsugaru in 2072..." Ai-chan from the Future, Nonose Ai

Is this... a time machine? After reading the instructions, I pedaled it and was sent back to the past "Huh? That was yesterday... just before I returned to the office, and after that Ai-chan was attacked by two men..." Wanting to somehow avoid this, I lured Ai-chan to the office rooftop!