Kimihiro Watanuki is cursed with the ability to see evil spirits known as Youkai. Due to this power, the Youkai are attracted to him like a magnet, and each time he is close to being devoured. One day, fate drew him to a strange store and there, he met Yuuko, who was dressed in a very exquisite fashion. As destiny would have it, Yuuko has the ability to save Kimihiro from seeing the Youkai, but for a price: Kimihiro must work for Yuuko by performing chores around the store and other odd tasks, until she deems fit. With his "friend" Doumeki, and his secret crush Himawari, they will discover that the world they live in is nowhere close to ordinary!
In order to bridge the gap between humans and youkai, The Ministry of Spirit Affairs was formed. Military man Kei Agemaki is assigned to the new unit and seems to be the ideal candidate. He’s charming, polite, and a complete gentleman, but there’s just one problem: he’s absolutely terrified of spirits! When he arrives at the new headquarters, Agemaki is partnered up with a cute, yet brash, youkai named Zakuro. Now the unlikely pair must work together to solve the region’s spirit-related problems to help improve relations between humans and youkai, and maybe help Agemaki overcome his crippling fear while they’re at it.
There are some things that can only be said after death. Aided by a talking staff that thinks it is alive, Fumika delivers Shigofumi, the last words and feelings of the dead in the form of letters, to their addressees. Whether they are letters of apology, revenge, or simply a final farewell, she always brings them to their destination. Delivering Shigofumi is not always an easy job; as some people refuse to believe such things as letters from the dead are possible, while others are afraid of what these letters might contain. But the mail must go through; what the recipients decide to do with it afterwards is up to them.
Morimiya Yorito is a normal student who has an abnormal obsession for the sky. One day, he meets a strange girl named Shihou Matsuri who shares his interest, but as fate may have it, she isn't a human; Matsuri is a Yaka -- a "woe of the night" -- who is immortal and cannot stand the sunlight. A strange man is chasing Matsuri, to use her powers, so Yorito decides to help her hide. What are the strange man's plans, and what secrets does Yorito's sister hide?
At first glance these two animes may not seem to have a lot in common, since Sola focuses more on friendship, family, and romance, while XXX Holic is more about magic and morality, but they actually have a surprising number of elements in common. Both deal with the supernatural and how it can invade people's lives in ways they may not even be aware of. They also both have a brilliant mixture of joy and pain, friendship and lonliness, and fun and suffering to make anyone's heart run the gamunt of emotions. The plots and settings may be different, but in terms of the vewier experience and the underlying themes, I think if you liked one, you will defintely like the other.
The eccentric Suzumiya Haruhi wants nothing more than to meet aliens, time travelers and espers… but she’ll have to settle for the everyday Kyon instead! Along with the mysterious Itsuki and the vacant Mikuru, the duo forms the SOS Brigade – a club whose mission is to discover the mysteries of the world. Armed with a razor sharp wit and a skill for manipulation, Haruhi will stop at nothing to have fun at all costs, even at the expense of Mikuru’s dignity!
These shows look like they were based on a similar concept, but play out in two different ways. On one hand, Melancholy of Suzumiya Haruhi is an insane comedy; on the other hand, xxxHolic has a big dose of comedy, but can be quite serious too. The main male characters from both shows constantly get involved in supernatural events. In both cases they are not the source of the events, but the situation feels different in MoSH because of the title character. Some ideas in the construction of these two shows look similar (there's not enough space to discuss that, though ^^), yet they are still different. I can't guarantee that you will like one if you liked the other, but try it anyway.
In the year 1986, eighteen members of the Ushiromiya family head to Rokken Island where Kinzo, the elderly head of the household, will soon choose one of them as his successor. A portrait of the Golden Witch Beatrice greets them as they arrive at the family mansion, along with a disturbing epitaph: she will be resurrected on the ninth twilight after a number of bloody sacrifices. Unfortunately for the group, the statements come true, and soon the carnage begins. Will anybody walk away from the ominous island, or are their destinies due to be forever ruled by Beatrice?
Each of these series revolve around magic and spiritual occurrences and the female leads in each are very similar. If you liked the more mystery driven xxxHolic eps, then you'll probably enjoy Umineko.