The scenario is thus: You're one half of a pair of teenage twins, half Japanese/half English, and with the ability to travel through time and space to any point in the past or the future, travelling solo without supervision for pretty much the first time in your life.
Where's the party at?
They're normal teenagers in at least one respect, so occasions of historical note alone are no good - there has to be drinking, and preferably also dancing and good food and girls. So far I've got a few of the really obvious ones - a famous martial arts tournament, one of the particularly grandoise funeral games in ancient Rome, and an execution ball in revoluntionary France, plus I've made up one or two futuristic ones. Exhibit A. (The girl) likes fighting and drinking and things of that ilk, so she's picking most of the options. Exhibit B. (The boy) likes cute, adorable things, to which so far the only ones I can come up with is Disneyland Paris at Christmas (I'm looking it up, but if anyone wants to save me the trouble and tell me if ever it snowed on Disneyland Paris at Christmas, and give me a date, I'd be much obliged). Anything between 1914 and 1945, including VE Day, are off-limits for continuity's sake, and I want to avoid Millenium-related parties, and I'm particularly after at least one Japanese one. Other than that, let your imagination run wild.