Drifting Dragons 16

The crew members of the Quin Zaza are grounded while waiting for Gibbs to recover, so they spend their time in the city of Sisyphus. There, they have a chance encounter with an odd woman who constantly watches the skies. She's hunting a rare gigantic dragon that's slowly plummeting to the ground from the highest reaches, an event that happens only once in a lifetime. Naturally, the intrepid drakers can't resist an opportunity like that, and so begins a new adventure!

Volume 16 of the Drifting Dragons manga series by Taku Kuwabara.