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?
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!
Tomoya Okazaki is a third-year high school student who is generally bored with life and doesn't take his studies, future, or anything else seriously. One day, however, he meets a lonely-looking girl in the school courtyard, Nagisa Furukawa. She explains to him the source of her loneliness: she had missed a lot of the previous school year and thus is repeating her third year; everybody that she knew has already graduated, and she is lonely. Tomoya is rather indifferent at first, but decides that he has nothing better to do and spends increasingly more time helping Nagisa restore the school drama club. As his relationship with Nagisa grows, Tomoya begins to open up to various other people around the school as well...
Both Clannad and Ai Yori Aioshi are about a young couple who progress slowly in their relationship. I noticed that in both series the girl is someone who tries her best and doesn't want to trouble anyone but also tends to be a bit of a crybaby. The boy is a person with a dark past until that girls comes brighten up his life so he cares a lot about her. He has a lot of girls hanging around him which causes comical situations but the romantic thread in the story is quite serious.
In present-day Japan, a rising decline in the birth rate has prompted the government to intervene, thus forming the R.T.P. committee whose goal is to promote arranged marriages. Due to the sensitive nature of the issue, however, a test run was deemed mandatory, and young Ryo Mizuhara (chosen by the world's best supercomputer) was selected as the test subject, much to his own dismay. With the megalomaniac Shizuka Masuda appointed as his fiancee and secret agents in his face at every turn, can Ryo manage to save his sanity, let alone his bachelor lifestyle of the past?
Both anime have the same plot: The male leads finds out about an engagement with the female lead
Tough in one of them the lead male knew about the engagement but didn't go on with it the situation is the same both male leads don't even want to hear about the engagement but in the end they realise their deep love for the female character!
The average Tsukushi Makino attends the snobby, elite Eitoku Academy, which is dominated by the Flower Four (F4) – the sons of the most powerful families. Like the rest of her classmates, Tsukushi keeps a low profile until one day she can stand it no more! For her obstinance, the F4 declare war and it's Tsukushi against all. In the middle of it all, she finds herself drawn strangely close to two of the F4; they might not be as bad as they seem. With her heart torn between two boys, will Tsukushi be able to find the love she desires?
Chitose Hitotose was orphaned at a young age and is now in high school. He yearns for a family and a place to belong, but his long years of independence and isolation are setting his feet on a dangerous path. What is the solution that his teachers conceive? He needs a mother... but it's not just one, but five "Mamas!" Absolutely no one can discover that his teachers live under his roof, and he has to hide the fact from everyone, from the class president to the principal! With their maternal instincts in overdrive and mysterious pasts, can Chitose learn the lesson of happiness?
The best harem stories put a premium on what draws the surrounding girls/women to one boy/man to such an extent that each would be willing to live with her competitors in a setting that would be loud at best and absolutely chaotic at worst. Both Ai Yori Aoshi and Happy Lesson do that quite well: the viewer is shown how each member of the harem is specially drawn to the male figure at the center even as the flaws of that figure are shown. Ai Yori Aoshi features Kaoru, a somewhat more likeable and more focused male lead, while Happy Lesson's Chitose is more of an aimless guy who really needs the help of his "mamas" to straighten up and fly right (even if the mamas inevitably overdo it!). I put Ai Yori Aoshi in my top five after viewing only five episodes because (a) I had read all of the manga previously, and (b) I really like the quiet strength of Aoi-chan, someone who is constantly questioning herself yet tracks down her first love in a huge city even after being told their love can never go forward. While Happy Lesson hasn't yet offered, eight episodes in, any single female that is on Aoi-chan's plane, the mamas' collective desire to care for Chitose is the practical equivalent of Aoi-chan's similar caring instinct. For that reason, I recommend both ways here.