Watch Nanatsu no Taizai: Seven Days Watch now on Miruro — Free Anime Streaming A spin-off of Nanatsu no Taizai showing how Ban and Elaine met in more detail. Over the course of seven days with Ban, Elaine's heart is healed. The… Series info · Watch free · Trending anime · Airing schedule FormatNovelStatusFinishedScore71/100SourceMangaCountryJapan Fantasy · Romance Nanatsu no Taizai (Parent Story) · Seven Deadly Sins: Seven Days (Adaptation)