Hey there and welcome to the forums, Riko-chan! Who wouldn't love Pikachu? It's so adorable and I would love to have myself one to hug all of the time even though I would get electrified! There's the Cute Pokemon Fan Club & Electric Type FC located in Pokemon Groups, some discussions tackles Pikachu so you might want to check 'em out too! Plus, it seems that you got a thing for cute Pokemons! XD
So what brought you here in PC? Was it because your looking for Pokemon discussions wherein you could also find off-topic discussions such as anime discussions? Well, if you do. Then you found the right place, Rikooo-chan! PC has a very large Japanese section called Japanese Entertainment. It's pretty active and you can join a lot of topics about anime & Japan there. At the same time, you will be able to meet a lot of anime fans as well. For music & sports, there's not much to say since Culture & Media board covers those two. :]
Ouran Highschool Host Club is also my favorite, omg! I just love how the characters blend in with each other, and how funny the characters are. Have you seen Special A and Maid-Sama yet? They're kind of all alike. :P
Anyway, there's a lot of boards for you to explore so take your time, don't take things too rush! PC is huge and I'm sure as the time goes on you will get eventually used to this place. If you ever get confused though, don't you worry! The staff members are around to lend you a hand, so don't hesitate to contact them!
And so, make sure to follow the rules all of the time if you don't want to get into any trouble. Have a woooonderful time here, stay active and looking forward for future encounters in the board. *^___^*