From Twinbells Doujinshi: A gorgeous doujinshi focused on Luc during various parts of his life and the way how his conversations with Leknaat and Tir changed his view on life. The main theme of the doujinshi is of Luc learning about a firefly's life and how it dies one week after it starts showering the world with its brightness, basically, its life. And later on, a grown up Luc (in Gensou Suikoden III) compares himself to a firefly as he realizes it is now his time to shine before he takes the True Runes with him to his death.

From Twinbell's Doujinshi: A Gensou Suikoden V doujinshi by the popular circle Lighthouse-MK. The main story is a comedy, one of Miakis' attempt to strip the prince, because, according to Miakis, the prince's most perfect weapon is "the skin of a bishounen." So she had been attempting to strip the prince of his shirt in order to "teach" him how to use his... uhh... masculine wiles on his enemies? Thank goodness the prince has Lyon there to stop Miakis from doing whatever she wants to do with him. XD There are also several other short prince/Lyon stories, one of them even has the two talking about their past and remembering back to the first time they met.