Kazuya Saotome is an electrical engineering student with a passion for computers, building his robot squid, and programming. One day he receives May, a hand sized cyberdoll, in a package from Cyberdyne Co. as a revenge tactic planted in a CD from his rival. With a little help from May to clean up his act, he may even be able to win over the heart of Kasumi, his landlord's daughter.
Keiichi Morisato is just your average college student until one day, fate interjects as he makes a call for take-out food. Unknown to him, he reaches the Goddess Help Line, and contacts a goddess named Belldandy, who grants him a wish. Thinking it to be a joke, Keiichi wishes for her to be his girlfriend 'forever'.
Aoi Sakuraba, heir to the Sakura department store, has only one thing on her mind-- her beloved. Betrothed from a very young age, she has been in love with him, Kaoru Hanabishi, ever since. After Kaoru left his family, their bethrothal was nullified. Aoi sets out to find him. Will they be able to stand against the barriers that will try to keep them apart?
Multiple girls and a boy, trouble about expressing one's love, romance, and funny trouble. Those are all the things that 'll make you like both series. Though computer geeks will have a special preference for Hand Maid May while other might prefer the more standard settings of Ai Yori Aoshi
When Murase Takaya, an average and somewhat perverted boy, decides to buy a robot to keep him company, it is the robot that chooses him. However, when the maid is delivered, her particular programming leads her to refuse wearing her uniform, throw away his sexy figurine collection and run away! The two soon make up; and though their relationship remains complicated, they get along more and more in time. From wearing all kinds of costumes to taking care of kids, will Yui find of what she's made for?
These series are pretty similar, involving a robotic maid (and one that neither of the male leads directly choose themselves), a young man with less than immaculate thoughts, and their somewhat difficult relationship. Both series have a firm comic grounding as well.
Chances are fairly good that if you've enjoyed one of these, you'll like the other as well.
Both Hand Maid May and Koharu Biyori are primarily comedy anime about a hapless young man and a robotic maid. If you liked this aspect of one then try the other.
Ryunosuke and his father are running away from his crazy mother when, feeling the urge to answer nature's call, Ryunosuke finds a cute little alley cat and decides to keep it. Almost immediately after, they are caught in a fire fight with his mother's lackeys. Tragically the poor cat dies and Ryunouske is heartbroken, but luckily his inventor father just happened to bring along a deactivated robot. By placing the cat's brain in the robot, Nuku Nuku is born! Now all they have to do is teach Nuku Nuku how to behave like a normal girl instead of a super-strong, cat-brained robot, while trying to avoid a mother's wrath!
Goro Mutsumi is a young man that never seems to catch a break; he has a hard time keeping a job, has horrible luck, and continuously finds himself in bad circumstances. However, things change one day when he comes home - having been fired yet again - and finds three young girls sitting in his apartment. They're the reincarnated angels of his deceased pets, and they're here to turn his luck around given how well he treated them in their past lives. While the idea sounds like a godsend, things don't go quite according to plan; the angels tend to cause more harm than good, and twelve altogether end up joining Goro's cramped household! In addition to learning how to co-exist with his newly acquired roommates, Goro must also defend them and himself against four sacred beasts who are after him for mysterious reasons. One thing's for certain: Goro's life will never be the same!