Not usually understood, out of touch with his emotions — but he loves whom he loves, and such is not something he is confused on.

Please, take good care of him.

(made in special honour of a very special someone, who writes arknights x reader contents on tumblr) 

🍰; Federico Giallo, code name Executor. 

 🦋; Geppetto's Puppet, better known to be 'P'.

🤞; your roommate, never out of ways to tease.

Leviathan is usually shy, timid, and easily flustered — however, he becomes more... assertive and sure of himself when on duty as the Grand Admiral of the Devildom Navy. 
What a contrast from his usual self. 
Is stern, disciplined, and serious with his Navy, and expecting respect from them. Has a immense soft spot for his lover, always; is extremely protective, especially when as Grand Admiral.
Some people forget that Otaku Third-born is also Grand Admiral.