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Iwatsubo Rie is a former seiyuu and singer from Tokyo who was active from 1991-2004.
She debuted as the voice of Amano Haruka in Taiyou no Yuusha Fighbird and took on many other roles like Risky/Safety of Omishi Mahou Gekijou: Risky/Safety.
She also performed several songs for anime shows, but stopped all activity in spite of ongoing roles in 2004 without an official announcement, details unknown.
This short film introduces Semira, a strange boy who comes to play with Ojaru and his chums and bears a marked resemblance to a boy of the same name who spent a summer with the village elders when they were boys, long ago.