Waresho! Warera! Shoudoubutsu Aigo Iinkai

While searching for a run-away cat the twins Riko and Rimu Mikogami find a strange device that transforms them into "Kirumin". It also enables them to turn into real animals. Their older sister Nagisa soon joins them. Now the three have cute, funny and sometimes dangerous adventures.

Invading alien Liza Luna wants nothing more than to destroy planet Earth... after she gets in a little sightseeing, first. But her travels soon take her into a cat café, where the furry felines inside invade her heart just as surely as Liza invaded Earth! Destroying the world won’t be so easy now that she’s discovered the joys of kitty cats...

The story revolves around Kakazu Kio, an ordinary high school freshman living in Okinawa. A girl with cat ears appears before him during a memorial service for one of his family ancestors. The girl calls herself Eris and claims she is an alien. Before long, fanatical alien worshipers and a mysterious government agency are in hot pursuit of Eris, but Kio's childhood friend Manami—who wants to follow in her father's footsteps in the CIA—captures Eris. Kio finds himself having to protect Eris from everyone.

A cat-like alien from a distant galaxy, MuMu, arrives on Earth. His goal is to learn about home appliance technology on Earth to recover the technology his species has lost. The protagonist, Sakurako, has a typical university life, but everything changes with MuMu's arrival! What begins as an unexpected cohabitation quickly turns into a whirlwind of chaotic events. The chemistry between Sakurako and MuMu leads to a super-spectacular, appliance-filled, and cat comedy adventure.