Tsubasa has always been a little weird and detached, but when he gets dragged into a different world to rescue his supposedly lost mother, his brother Tokimaru knows that there is something more to his background. There they meet up with a mysterious character Shroud, captain of a pirate's ship, and he becomes an aid in their adventures. This is a very mild shounen ai series, but the story is very strong with lots of action, and all the characters are very memorable.