Portrait of a Flirt

Age in Estpolis Denki II26
Height183 cm (about 6'1")
Weight75 kg (about 165 lbs.)
Hair*dark blue
Eyes*Hard to tell, given that all game sprites have black eyes. But if you look closely at the official artwork for Estpolis II, they appear to be green.
Birthdate*sometime from March 21 to April 19
Blood type*O
Dexterity*right-handed
Hometown*Bound Kingdom
* observational or hypothetical

From the Estpolis Biography II instruction booklet (US)

"Hydecka protects the prince of the Bound Kingdom. He is a good swordsman and very sure of his skills. When Maxim's journey winds through the Bound Kingdom, Hydecka will offer his services to the cause and promise victory over the Sinistrals."

From the Estpolis Biography soundtrack CD liner notes

Hidecka, Self-Proclaimed Strongest Man on Earth
'Not to brag, but my skills with the sword are immortal!'

"Hidecka is the strongest warrior in the service of the king of Bound Kingdom. His skills want for nothing, and after his sword swings by, no one is left standing.

With his supreme strength and manly physique, one would think that he'd be quite in demand with the local girls, but he's really so dumb that they don't want to have anything to do with him." [That's where Dekar should turn to his enormous fan base.]