In 1987, wanting to learn screenwriting, he took a course by the Japan Writers Guild.
In May 1988, he won an award for Toki niwa Haha no nai Ko no yō ni which marked the start of his career.
He next did the screenwriting for the series Kimi ga Uso o Tuita (You Lied), which had an average viewership of 17.3%.
The story took up various social taboos, such as love between a teacher and student, rape, and incest.
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