Along with Sakaki, she makes up the prankster duo in the friendship circle. Very savvy with electronics and almost never seen without her lab-coat. Loves to tease Tsumiki which often brought her severe repercussions from Tsumiki herself.

Place to Place
Feelings may come and go, but true love always remains in the heart. Tsumiki Miniwa is in love with her best friend, Io Otonashi. For her, confessing is nearly impossible; but to her friends, they seem to be the perfect match. Cute and petite, Tsumiki comes off more as a friend, and Io's attitude toward her is friendlier than toward others. Despite the constant teasing and obvious hints that his friends have been dropping, Io always seems to miss the signs. Throughout her everyday school life, Tsumiki spends time with her friends and Io. Will she finally muster enough courage to confess her true feelings?