Frontier Island, become an island guard after being discharged from the army!

Retirement distribution.
Lin Tian chose to stick to the frontier island.
A small island, a person, stick to every territory.
That changed when he met a shark.
[You helped the shark and got a set of sunscreen equipment thanks to the shark's gratitude]
[Help the little fur seal puppy succeed and reward a set of diving equipment. 】
[Help the dolphin to solve the wound successfully, get the dolphin's gift, and reward a surfing speedboat]
Watching the animals on the sea keep coming to him for help.
Lin Tian: "...