Having failed to earn admission to a university, Hideki Motosuwa has moved to the big city, determined to study his hardest for next year's exams. However, an unusual distraction presents itself one unsuspecting day in the form of Chii, a robotic young girl that has been discarded in the trash. In a world where an increasing number of people turn to these 'persocoms' for company, the bonds and limits of human relationships are tested as flesh manages to fall in love with the machine itself...
Time has passed and many things have changed in the lives of Hiroyuki and his friends. Most importantly, Multi, the human android he loved so much, is no longer a part of his life. Things take a turn, however, when the new semester starts. Multi unexpectedly is brought back to the school Hiroyuki and his friends attend by her developer Nagase, but it seems she has lost all of her memories. Now Hiroyuki must try to balance rebuilding his friendship with Multi while handling all of his other everyday problems.
Rito Yuki is a bumbling boy who wants nothing more than to confess his love to the lovely Haruna, but a variety of obstacles always seems to stand in his way. One day, while relaxing in his bathtub Rito found his hands full - literally - with the breasts of a strange alien girl named Lala who suddenly appeared in his lap! She is the princess of Planet Deviluke, and she has run away from home to escape the prospect of an arranged marriage; and unfortunately for Rito, his accidental groping is the traditional engagement ritual of his otherworldly guest! Deviluke's emperor will destroy Earth if Rito backs down from his "proposal," but all he really wants to do is be with Saruyama! Naked antics, magical powers, misunderstandings, Lala's marriage-happy family and Rito's own shyness are many of the barriers he must face in his attempt to win the real love of his life – that is, if Lala doesn't win him over first!
The power to cross over dimensions is one that is deeply coveted -- a lesson that childhood friends Sakura and Syaoran learn the hard way when an unknown enemy attacks an archaeological dig in their country. As a result, Sakura's memories are scattered to different dimensions, causing her to fall into a deep sleep. In order to save Sakura's life, she and Syaoran must journey to various worlds in search of her memories, with the help of fellow travelers, Fai and Kurogane. But finding Sakura's memories won't be easy, and the price for traveling through time and space is high...
Chii from Chobits has made an appearance in Tsubasa Chronicle before and vice versa.
Chobits was about the future in technology, but when you're jumping between realities in Tsubasa Chronicle you come across many different worlds with advanced technology and poor worlds which rely on magic.
I would recommend this series for those reasons mentioned above.
Cross Academy is a school with a difference: in a unique and experimental setup designed by the headmaster, it has a Day Class consisting of ordinary humans and a Night Class filled with vampires. Yuki Cross and her friend Zero Kiryu are school prefects whose job it is to make sure the secret of the Night Class is always safe; they patrol the school grounds at night and supervise the switchover of classes at dawn and dusk to prevent any 'accidents' from happening. While Zero is suspicious of vampires and hates the idea of sharing the same space as them, Yuki admires the Night Class for their beauty and sophistication; she is especially intrigued by their charming leader, Kaname, because he once saved her life. However, as Yuki quickly learns, not all vampires are amiable like the Night Class, and as terrible events unfold, Yuki must ask herself whether in a world where vampires are the hunters and humans are the prey, peaceful coexistence can really be achieved.
Both series have great humor and awesome animation! Love and romance make both series have sweet stories to show and tell! If you like romance, humor, and great animation you'll love both series!
When Mikuri Tomokazu fell asleep on his 16th birthday, he expected to dream of girls and happy places -- but instead found himself on a strange battlefield in a desolate world! Now, Mikuri is saddled with the responsibility of saving the both the human and dream worlds from forces that could spell their destruction! But, more importantly, he is also saddled with a legion of adoring voluptuous girls. Questions abound: Who will Mikuri grope next? Will he ever score? And, less importantly, will the world be destroyed?