Astrology
I checked out skyviewzone.com to match up Ryuichi (Aries) and Tatsuha (Sagittarius) to see what this site had to say about the couple~ I have bolded the things that I think really fit them...
SUN in ARIES with SAGITTARIUS Enthusiasm, a sense of adventure, and high spirited play infuse your relationship. You both feel you can be yourselves fully with one another: you don't have to tone down any of your exuberance and energy, the way you might with someone else. In fact, you inspire and vitalize one another's strength. Aries sometimes clashes or competes with other strong individuals, but Sagittarius is tolerant, not threatened, and doesn't take the bait. Also, you both need personal freedom and space, and even if you spend all of your time together, you are unlikely to feel smothered in this relationship. A happy twosome!
I think it suits them rather well! ^_^ Now, I know we don't know the exact year everyone was born, but let's just pretend that Gravi began in 1997, when Murakami-sensei first put it out, okie? That would mean Ryuichi was born in 1966, which is the year of the Horse. Tatsuha would have been born in 1981 which is year of the Rooster. Okie? Okie! Now, let's see what chinese.astrology.com has to say!
It's a long one!
The Horse and the Rooster could make a good pair, surprisingly enough -- surprising because the Horse's unpredictable nature wouldn't seem to be a very natural match for the Rooster's exacting perfectionism. The success of this match relies largely on the Horse's flexibility and the Rooster's ability to quell the urge to nag. The Rooster has a very sharp mind and a keen eye that picks up subtleties of detail; these qualities are what lead to the Rooster's insistence on perfection, but are also quite attractive to the Horse. The Horse is a very witty, scintillating companion in part because of its general knowledge of a broad range of subjects; this Sign is quite attracted to the Rooster's specificity of knowledge.
As lovers these two could run into problems, especially if they live together. The Rooster makes a very loyal, trusting partner but can be a rather annoying housemate if it gives in to its love of criticizing others. The Rooster wants things to be impeccably clean and in perfect order, but the Horse will often start a project and then abandon it right in the middle, having thought of something more fun or interesting to do. The Rooster could be very impatient with the Horse's inability to focus or follow things through. The Horse also doesn't have the best track record in terms of relationship longevity. However, these two will have a cerebral connection and can keep one another mentally stimulated.
As business partners these two will have to choose work that will hold the Horse's interest. The Rooster is a natural at managing finances and other practical affairs; this Sign's sharp mind hardly ever miscalculates. The Rooster also possesses a basically conservative nature and is a real bargain-hunter, qualities that will ensure the business isn't hurt by unwise risk-taking. The Horse is a very hard worker when it wants to be and possesses an ingenious resourcefulness that will astonish and please the Rooster.
The Horse and the Rooster share a compatibility of six, on a scale of one to ten.
Okie, personally I thought the Rooster isn't the best sign for Tatsuha...but that's just me! I see him as a lot more spontaneous and a lost less...er...anal retentive? :3 But still, even though it's not as promising, in both cases a relationship is very possible!
