Doujin GAME CD Software Eastern Starry Ship : Undefined Fantastic Object

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Media : Press CDOS : WindowsXP/2000
Original coterie vertical scroll bullet shooting game.
Twelfth installment of the Eastern Project
[story]
At the end of a spring, a strange ship was seen in the sky of a fantasy village.
It seems that the ship is moving through the clouds as if it were looking for something.
What is the ship's real identity and purpose?
Spiritual dreams were full of interest because they smelled of treasure.