Ink Nijihara

Moetan's protagonist. She lives next door to Nao and is infatuated with him. Even though she is 17 she is often mistaken as a grade-schooler, however she makes up for it with her high grades, especially in English. She meets Ah-kun who gives her the power to transform into the magical hero Pastel Ink; using a pink flip phone, changing through that of into a duck-like outfit with blue hair. Using this new power she helps the people of her city while also using it to tutor Nao in English.

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In episode 12 she has lost her magical abilities but still continues to tutor Nao under her own design of Pastel Ink and gets into the same college as he; she has not yet revealed to him that she is Pastel Ink.

Ink's quirks are that she is very clumsy, often tripping over nothing, a trait she seems to have gotten from her mother; and becoming entranced to the point of drooling at the thought of being alone with Nao-kun.