Sumiko Dan is the first grade teacher of Mia and Hye In.
Role in Plot[]
She becomes a major character in Episode 34 when she taught Mia to do a backflip on the monkey bars in Mia's flashback. At first, she hates dancing as shown when Mia said the word 'dance' while she is describing what are Prism Shows because she can't dance well. Then, in COSMOs' Prism Act, they let her know that it doesn't matter that she can't dance well, as long as she was having fun with her students.
