Seikiji ni hikari o hanatsu

Hikari o shitaitsutsu : kashuu

Barukugata hikari jikai sensa o mochiita kichuu zetsuen hikari henryuuki ni kansuru kenkyuu

Hikari o kiku

Hikari o abite

Hikari o shitaite

Hikari o tazunete

Ekishou kuukan hikari henchouki o mochiita horoguramugata hikari suitchi ni kansuru kenkyuu

Hikari dentatsu kansuu gyouretsu o mochiita hikari kairo gouseiron ni kansuru kenkyuu

Porimā zairyou o mochiita hikari LANyou maruchimōdo hikari bunki soshi ni kansuru kenkyuu

Hikari ni somuku

Hikari outouseibu o sokusa ni yuusuru ekishou koubunshi ni kansuru kenkyuu

Hikari ni yashinawarete

Hikari ni yashinawarete

Serafuita : hikari o yobu onna

Hikari arei rojikku o mochiita heiretsu enzanhou ni kansuru kenkyuu

Kokoro no hikari o motomete

Hikari to towa ni

Yami ni kagayaku hikari

Kaisetsu genkai o koeru kinsetsuba hikari risogurafi ni kansuru kenkyuu

Denen ni kagayaku hikari

Tousou ni kagayaku hikari

Denshi kuubouka o mochiita handoutai hikari henchouki ni kansuru kenkyuu

Hikari faibachuu o denpansuru soriton parusu no kaisekihou ni kansuru kenkyuu

Shinjidai o kami ni