A young girl with a light, carefree personality who stays over at Shoushinji, the location of the training camp. She arrives there earlier than Shouko and the others. At first glance, Shouko is captivated by Migiwa's beauty and fashionable clothing. However, once Migiwa shows her arrogance, Shouko quickly disbands that thought and categorizes Migiwa as one of those 'hard-to-deal-with' girls.