The manga from Yumi Tamura began in 2001 and wrapped up in 2017 with 35 volumes total.
The series has Yukio Takahashi directing based on the series composition by Touko Machida.
An anime adaptation of the 7SEEDS manga from Yumi Tamura was announced by Netflix Japan at an event today and is planned for an April 2019 debut as part of a global launch.
Check out the official site and Twitter as well as the Netflix site.