It's about the coastal lifeguard, as Hyogo Kanbayashi tries to make his way through to enter Tokkyu, the elite lifeguard team.
(from Baka-Updates)

Salvors are men responsible for towing wrecked ships and handling the cargo. They are different from rescue teams as they usually ask for money before offering help. Nanba Rintarou's father was the owner of such a company, but Rintarou really hated the way they operate and decided to work in a proper rescue team.
However, Rintarou's father died right after Rintarou completed his training. In his will he asked Rintarou to take over his company. What's worse is he left his son a debt of 1.5 billion yen...

A super authentic aviation romance finally serialized!

The story of a blue vault of heaven, which is drawn by surpassing reality and touch!