Lunar: Harmony of Silver Star has climbed the Amazon.co.jp ranking to 64th of all games. Way to buy, Japan!
Finally, Game Watch ran a Four Heroes article with a few more details. (http://game.watch.impress.co.jp/docs/ne ... 26267.html) No new media, though I think some of the art is clearer here. I've translated part of it below.
Dyne. 24. He is the Dragonmaster, guardian of the Goddess Althena, who commands the Four Dragons. A warrior skilled in both swordplay and magic, the most powerful human in the world. He possesses a broad heart and an iron will, is passionately empathetic with a kind smile. No matter how difficult the situation, he never gives in and always wears a smile. He will rescue a sopping wet puppy that has fallen into a river even when he must rush into battle, to the constant confusion of Ghaleon, who acts as strategist. Likes pranks and annoys everyone around him with bad puns. Has a close relationship with the Goddess Althena that goes beyond master-servant, approaching romantic feelings. But he is easily embarrassed and does not take it any further. For his age, he has the face of a middle-aged man.
Ghaleon. 25 (roughly). Belongs to a long-lived race, and thus is many times older than his apparent age. He is calm and collected, wise and far-sighted. As a realist, he seems cruel at times. Previously he only observed human affairs as a bystander, but thanks to meeting Dyne he discovers human potential and gets involved. Dyne exceeds his expectations, and he is puzzled by the way he gets dragged into Dyne's misadventures, often ending up in unfavorable roles. He lectures Dyne about this each time, but deep down he enjoys it. No matter how sticky the situation he is always cool and never over-reacts. He may seem emotionless on the exterior but he actually has quite a passionate heart. The foremost beautiful man of the Lunar world.
Mel. 27. A Beast-man. A muscle-bound strong man who was originally a pirate chieftain. A man of the sea with a strong sense of chivalry. His impolitic side stands out where his behavior is concerned. His personality is well described as frank, uncomplicated, and free-spirited, but he has a talent for seeing straight to the heart of the matter at hand. There is no man more dependable to his allies and he is a veritable demon on the battlefield, but he has a soft spot for women and children which makes him maudlin. Is romantically involved with a nobleman's daughter named Relina, whom he rescued by chance; she already has him wrapped around her finger. He and the refined Lemia like to argue with each other, though they actually are on good terms.
Lemia. 19. Leader of the Magic Guild, which governs magic in Lunar, and a magical prodigy, as her responsibility requires. A world-class refined lady, she normally is somewhat cool and aloof. Her views are frequently at odds with the unrestrained Mel and they often argue. She is also critical of Dyne and his habit of acting on hunches. However, she is actually grateful to them both for teaching her things she couldn't learn in her sheltered upbringing, and important things that she hadn't realized, though she doesn't show it very often. Ms. Hot-cold Personality.
Althena. 21 (roughly). The goddess that rules Lunar, she reincarnates over and over with an uninterrupted memory and heart. For over a millennium she has been at the center of the world; a true living deity, possessing both an impression of motherly gentleness and dignified strength. She has watched humanity for many years and has faith in their potential. She loves and trusts humans, even in their foolishness. Loves the human culture of song, and sings songs herself; her songs comfort the people and spread hope. Has fondness for Dyne not as a goddess but as a woman, though her position prevents her from acting on it.
Aiferun. 24 (roughly). Human. Due to his mask his age is unknown, but seems to be about the same age as Dyne. Journeyed around Lunar with Dyne, Althena, and the others at one point; at that time he did not wear a mask and he behaved as an ordinary human. He put on the mask after parting ways with them. He disagreed with Althena, Dyne, and the others about the state of the world and the divine presence in it, and they became enemies as a result. After a number of fierce battles he captures the Goddess Althena. He has built a mechanical fortress on the bottom of the ocean and intends to become a god himself. Due to some sort of deep-seated complex or compulsion, he thirsts for power that exceeds human boundaries. In reality, he is a very weak, human-like person.
Five Princes of the Black Star. Gods summoned by Aiferun. Their outward appearances have a mask-like form. They hijack Aiferun's body in a plot to destroy the world.
What's all this empty space, did I miss something?
Several of the descriptions have these Japanese character keywords which I found amusing. Like Dyne's ojisan-gao (uncle-face). Ghaleon's is 
