I really chose the phrase 'Broken Barrier' because I am really spreading words about the existence of Touhou coughcoGensokyocoughough beyond it's supposed borders.
All 15 games, plus spinoffs, Seihou, and Samidare.
*Jumps out of window, rolls upstairs like an Armadillo, jumps out again
Anyways, that's a big Touhou advertising you're having there. But, have they already know what Touhou ORIGINALLY is?
If they don't know at all but interested, introduce.
If they only know the surface, explain.
If they know what they're supposed to know, get him/her a position.
If they're there to stop it, Gap his/her way out. (joke)
Activeness. Some of the major things stopping a organization from existing. If it's just there, not doing anything, it's not something. Do something interesting and you may find more members on your shoulders.
Discipline: Never bring shame to your organization. It's not impossible that someday somebody will bring up
stuff to the team, and making your team looks rubbish in the society's eyes if not covered. It is important to deal conflicts without bias to any sides, even if you got tea for everybody. My father was a football captain and he threw anyone who isn't fit for his team, and anyone who hates him in the heart if found out. He also trained them hard to the point that somebody or two fainted, everyday. As a result, he formed a formidable football team for his school.
Confidence: Never become too confident, same goes to 'under'. From the way you run your organization, it seems to be following the path of a businessman/woman. And becoming one requires confidence of your products, like the confidence of your club. Convince the people well, and Touhou would get into their minds. But also be reminded, not all have the same taste so here comes the next one:
Strategy: A vegetable's taste differs from anybody. I hate them but some love it, honest by the heart. You can't force a FPS-player to watch Barbie. And not being honest to your tastes is truly not a welcomed habit of life. So, plan a strategy to make different people love Touhou. (can't think examples tho)
Therefore, I have to say that, the easiest thing to do in life is losing everything, doing nothing will make you bored eventually.
(Bonus) Stealth: Keep a low profile among the teachers, but high among the students. Only useful if Anime-looking things is something your school doesn't want in their territory.