Kinsei Tokkyuu-ban Gaihen Hana wo Ou Tabi

Eight years after his journey on the Venus Express, Sabimaru leaves the management of his bar in Yokohama in the care of someone else and sets out on a journey to visit the people who helped him back then. He meets the nameless baby for the first time at the Tsukishi camp, builds a grave for Natsukusa's mother in a village in the Arctic Circle, and finally arrives in Granada, where he meets up with Sandetsu and Eustace, who had gone ahead of him, as well as his beloved daughter, Sakura. This journey is also a journey to teach Sakura, now seven years old, about her mother, Venus. What did Sakura see as she traveled the world away from her father for the first time?

(Source: Shinshokan, translated)