[[Lord Knight (ragnarok online)|]] of the [[Bio Lab]] in [[Ragnarok Online]], and retconned into being [[Kathryne Keyron]]'s older brother and engaged to [[Margaretha Sorin]]. He has [[short hair|short]] [[white hair]] and [[red eyes]]. Becomes a [[Rune Knight (ragnarok online)|]] in the Tomb of Honor.

[spoilers]Died first.[/spoilers]

h4. External Links
"Profile Card":[https://64.media.tumblr.com/656c1d8492b640fda21a17f426b67546/tumblr_nx3n12SNEP1rbi60go6_1280.png]
"iW Database":[http://db.irowiki.org/db/search/?quick=seyren]
"RateMyServer Database":[https://ratemyserver.net/index.php?mob_name=seyren&page=re_mob_db&f=1&mob_search=Search]
"Divine-Pride Database":[https://www.divine-pride.net/database/search?q=seyren]
セイレン セイレン=ウィンザー ROお絵かき生体セイレン