▁of ▁L una . ▁▁ ▁Gil as ▁Port rayed ▁by ▁J ake ▁V arg as ▁S era ' s ▁son ▁and ▁Des h na ' s ▁child hood ▁friend ▁while ▁growing ▁up ▁together ▁under ▁the ▁care ▁of ▁the ▁N ym fas . ▁In ▁the ▁training ▁of ▁the ▁new ▁keep ers ▁at ▁Cass io pe - a ' s ▁Island , ▁Gil as ▁is ▁killed ▁by ▁H era ▁And ora ▁( in ▁Ag ane ' s ▁body ). ▁He ▁remains ▁as ▁a ▁fresh ▁cor pse ▁with ▁Li ra , ▁Mira , ▁and ▁W ah id ▁after ▁Ar de , ▁E ther , ▁and ▁K eros ▁took ▁over ▁De vas . ▁He ▁uses ▁a ▁j ung le - spe ar ▁and ▁the ▁fruit ▁of ▁K aw ati ▁to ▁be ▁tempor arily ▁invisible . ▁ ▁S era ▁Port rayed ▁by ▁S era ▁is ▁the ▁mother ▁of ▁Gil as . ▁She ▁c ries ▁out ▁when ▁one ▁of ▁her ▁liv est ock ▁was ▁taken ▁by ▁an ▁Arg ona . ▁She ▁asked ▁Hel g ad ▁to ▁sum mon ▁L una ▁to ▁recover ▁it . ▁S era ▁was ▁one ▁of ▁the ▁N ym fas ▁ab duct ed ▁by ▁the ▁new ▁E ther ians ▁and ▁later ▁hyp not ized ▁by ▁Av ria . ▁S era ▁batt les ▁Al ena ▁but ▁she ▁is ▁knock ed ▁down ▁before ▁Av ria ▁interven es ▁to ▁fight ▁Al ena ▁and ▁her ▁group . ▁She ▁is ▁fre ed ▁from ▁Av ria ' s ▁control ▁some ▁other ▁time . ▁However , ▁she ▁m our ns ▁for ▁her ▁son