Kojiryu

Kojiryu has a very deep connection to Admiral Aramaki, but no one seems to know what it is.

While Aramaki has the Mori Mori no Mi ( Forest-Forest Fruit ). He is an Admiral with very much an Ideal set like Akainu. 

Kojiryu has the Kōji Kōji no Mi ( Fungi-Fungi Fruit ), which is a Logia related to the Fungi Kingdom. Kojiryu meanwhile is a Bounty Hunter of sorts who believes in a Peaceful yet stern form of kind justice.