Shu is from Datania, a country that makes young children work. He and his friends were trying to escape when they met the Returners. The Returners are some kind of rebels to Datania. Shu goes with the Returners to fight Zero, Nines, and his men who are after DT, a special substance inside humans.
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(Source: Anime News Network)

Kouji Tsujitani was a Japanese actor, voice actor, narrator, and director of audiography. Tsujitani used to be affiliated with Sigma Seven. He died of a stroke on October 17, 2018.

He was married to fellow voice actress [Kumiko Watanabe](https://anilist.co/staff/95248/).