I can't really give you a good story, but RuneScape was an amusing shit fest when I played it. I put several thousand hours into the game and lemme tell ya, guild drama and corporate deceit was order of the day when I quit. Most of the gameplay is pretty low key point and click adventure style, but you have the option to invest in whatever skills you find most entertaining, there's no pressure to be a jack of all trades. There was once a time when the players were not mostly mindless mmo zombies and or bots, that cabbage bombings were a regular occurance, people would group up and drop a bunch of cabbages till it looked like a scene from shaun of the dead, except with cabbages. I personally enjoyed it for a long time as almost a nearly single player experience, aside from only one quest I'm aware of, there's no more need to interact with people in RuneScape than there is to set your neighbors dog on fire after the 2nd time he shat in your yard. I personally quit because the developers started lying about upcoming content and starting rerigging the game to appeal to a more WoW fanatic audience. (they even have a clone of the hearthstone cardgame in the works) They're desperate for money too cause about the same time they approved a dozen different little microtransaction things, nothing pay2win, its all just cosmetic stuff, but they do kind of shove it in your face. I guess rather than find you an MMO to enjoy I'm steering you clear of one of the potential worst, Happy birthday!
Acctually now that I think on it, one I can vaugely reccomend is Vindictus. It's heavily anime, the story is intriguing if nothing else, and instead of your typical MMO lather, rinse, repeat combat you get a more hack and slash system that uses the Source engine, the entire game runs on the same stuff that makes HL2 work. It does have a tendency to lag a bit, as all the servers are in Korea if I recall correctly, however dungeons are typically hosted on the party leaders machine so soloing is probably the least laggy thing you can do. The game is totally f2p, the only Paid aspects are vanity items, that I remember, the game has updated a great deal since I last played. And you have a pretty decent cast of characters to choose from so you don't have to play the sword and shield guy all the time. It also has epic boss battles with most major bosses being no smaller than a medium sized tool shed. for the most part you can also solo most area's once you start getting to the really high levels you may find groups are almost necissary but it's up to personal taste/skill. Oh yeah being a perpetual cheapass as well RuneScape is also free, though it does block about 80% of the quests and world behind a monthly subscription but that f2p part can take a while, a good way to see if you like it or not.
