Michelle

Michelle is an old-fashioned locomotive from the garden area of the train world. She is described as having a bad hearing by Kay and Selly complains about her speed, explaining her old appearance and voice. In season 2, she is revealed as Jeanne's grandma.

Here comes Alf
Michelle is tasked with delivering Nano-flare bombs to the fountain plaza after it gets frozen. The Robot Trains had to wait for a long time in the cold due to her low maximum speed. She is the only train who can deliver them because she made the bombs with her flaming pollen. Kay managed to break through Area A using her nano-flare bombs

Go, Robot Trains!
Michelle gives her cargo to Kay. When Kay is about to leave, She instructs him to bring the cargo back in perfect condition. Kay comments on her terrible hearing.

Oh, Victor! Mr. Romantic!
Michelle is visited by Victor after Jeanne told him his edelweiss was delivered to her garden. Victor offers to clean everything up for her. After cleaning gardening equipment, Michelle notices her flowers are wilting and wants to water them. Victor then collects a large barrel of water from the river for her. Michelle then asks for one more favor, which is to see her granddaughter Jeanne. Victor leaves to get Jeanne. Jeanne arrives to talk with Michelle about how she was doing. After talking Michelle decides to return the edelweiss to Victor.