Urusei Yatsura

Lum is a cheerful alien who now lives with her human fiancée, Ataru and her goods friends on earth. The night before the school festival, the world begins to change, things seem to be repeating themselves. Gradually, all necessary functions come to a stop, people disappearing, streets deserting, buildings decaying except Lum and her friends who live ever happier. When they begin to probe the truth, they find out it's somebody's dream that is changing the world...

Mendou invites Ataru & Co. to his estate for a viewing of a large, aging cherry tree named "Tarozakura", which is to be featured in an independent film which happens to be financed by Mendou, directed by Megane, and starring Lum. During filming, Ataru cuts down Tarozakura as called for in the script, but the downed tree starts foaming and disintegrates. Afterwards, bizarre incidents occur all over Tomobiki, a mountain emerges out of the ground, spring gives way to winter, Sakura's ghostly friends disappear, Lum begins losing her powers, and Lum's friends begin acting as though she doesn't exist.

When everyone in town receives invitations to Ataru's wedding, they are shocked to see that his sweetheart Lum is not the bride. Eventually they learn that when Ataru was playing games as a little boy, he stepped on a girl's shadow. Unbeknownst to him, the girl was from extraterrestrial culture where stepping on one's shadow is a form of marriage proposal, and now she and her family have come back to see that Ataru keeps his promise. If he manages to get out of this without being killed by her folks, he'll still have to avoid being torn apart by the hands of Lum.

Lupica, another one of the legion of space princesses that all seem to have found out about Earth in some tour book, appears and abducts Ataru. Needless to say, Lum, assisted by her friends Oyuki and Benten, gives chase. Also needless to say, Lupica isn't after Ataru for his great looks or charming personality (because he doesn't have either). Lupica's goal is the greatest love potion in the galaxy, which she intends to use to seduce her sweetheart to tie the knot. To get it, she needs the possessor of the greatest lust in the universe. Now you know why she needs Ataru Moroboshi... -Animeigo 2004 DVD Release

A curse placed on Lum as an infant manifests itself in the present day, causing her to be taken to another dimension. Lum's husband, Ataru Moroboshi is turned into a hippo, and attempts to find Lum with the help of her friends.

Ataru and Lum must replay their fateful game of tag to decide the fate of Earth, that's being threatened by giant space mushrooms, as well as their relationship.

It is summertime, and Shinobu laments not having a boyfriend. She then happens upon a young man weak from hunger, and wearing a rabbit costume. She gives him a carrot, he expresses his gratitude by hitting on her... and she hits back. The young man leaves behind a key to another dimension where everybody's possible futures exist. Lum and Ataru join Shinobu to find the bunny boy, and happy futures for themselves.

Lum & her girlfriends are invited to Neptune by Oyuki. There she shows them her new business venture at a ranch of flying sherbets, birds capable of producing sherbet cones from their beaks. Ran convinces Oyuki to let her borrow one, her goal is to make some quick cash selling sherbets on Earth. Unfortunately, the combination of being overworked and a hot summer day has made the sherbet extremely cranky, even from its refrigerated cage. It breaks from its cage and escapes, but not before attacking Ran and Lum, and trashing Benten's brand-new bike by shooting sherbet cones at it. Now it's up to Ran to retrieve the sherbet before Benten blasts it out of the sky, and more importantly, before Oyuki finds out.