UFO Princess Valkyrie 4: Toki to Yume to Ginga no Utage / 円盤皇女ワるきゅーレ 時と夢と銀河の宴

The strange and magical events of the last season have left Kazuto with two Valkyries. He now finds himself living with and looking after both a teenaged-princess Valkyrie, as well as the child-princess Valkyrie! And they still have not yet gotten married... (Source: AniDB)...