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Östlich von Eden (East of Eden) is the second studio album by Akitei-Alvak singer-songwriter Kiara Yoshikawa, known professionally as Ersatz. The album was released in May 2019.

Östlich von Eden is most known for its title track. It was used in the social media commercial for xxx phones starring Ersatz herself and released as a single in May 2018. The song became her first charting single, peaking at number three on the Alvak Ohrwurm chart with sales of 528,000 copies. The sudden popularity of the single prompted her to release the entire album in May 2019, gaining commercial success subsequently. It topped the Alvak albums chart for a week in October 2020, selling more than 730,000 units while it was entering the chart. In 2021, the song was featured on the television drama Wings starring Leon Vom Bruch and entered the top 10 on the chart again.

After the album came out, the song "Wirbelwind" (ode to the band she formerly fronted) was issued as a single in November of the same year. It was featured as a theme song for the last season of the television drama Yes, That's Me starring and directed by Ole Hersch, aired on TV5 in December 2020.