The opening for this episode shows brief scenes from EosD. The episode truthfully follows the events from Perfect Cherry Blossom. Spring has come to Gensokyo, but the Hakurei Shrine is still covered in snow. Reimu has become too lazy to solve the incident for some reason, so Marisa decides to solve the incident herself, thus becoming the main character. However, the episode skips most of the battle scenes. Marisa first faces Letty Whiterock, easily defeating her. Later on, all the characters who originally serve as bosses, such as Chen, Alice Margatroid and Lily White are shown in short cameos. Marisa then finds the black hole entrance to Hakugyokurou, surrounded by the Prismriver Sisters, just passing by them. Marisa goes up in what it seems an infinite staircase, only to encounter Youmu Konpaku at the end. When Youmu is defeated, Yuyuko Saigyouji shows up, and the final battle begins.
幻想万华镜动画系列的第一集。故事取自东方妖妖梦。眼见对异变无动于衷、只顾吃蜜橘和仙贝的灵梦，魔法使雾雨魔理沙只好自己跑去寻找异变根源。像游戏原作一样，魔理沙在游荡途中逐个遇到了各个boss角色。不同的是，很多boss都只在射命丸文（原作《妖妖梦》没有出场）的镜头中一一带过了。从改编过后的情节看，春雪异变之章将妖妖梦三个自机角色相互联系了起来——魔理沙独自踏上冥界的征程，咲夜瞒着主人向灵梦传话（然而大小姐早已看穿了一切），而灵梦随后同差点丢了性命的魔理沙一起对抗幕后的主犯。
开场动画是之前提及的PV色は匂へど散りぬるを。用《风神录》的原曲，配了《红魔乡》的动画，用在了《妖妖梦》的OP……片尾曲是由Senya演唱的「Opposite World」（原曲：红魔乡蕾米莉亚角色曲「亡き王女の為のセプテット」）。片尾配图由同人漫画家Hounori[1]作画。动画的最后还给了观众一个惊人的悬念，刚换上巫女服的东风谷早苗随后在动画尾声出场，为接下来的《风神录》剧集埋下伏笔。还请注意这是制作组的改编，并不是原作的设定。自此，这个系列走上了一条疯狂挖坑的不归路。
