Goi Michiko 五井道子 Was An Alias Used By Hoshino Michiru 星野みちる For The Song Boku No Hana 僕の花 . Boku No Hana Was The Theme Song For The Movie Densen Uta Japanese Title 伝染歌 English Title The Suicide Song . Both The Song And Several Members Of The Idol Group She Was A Member Of At The Time AKB48 Played Important Parts In The Movie.