Hi, so as the title says, when is the best time to buy JR pass (regular one) if we arrive in Haneda on april 1? we are planning to use it for Kyoto and Would you also explain about the reserved and non-reserved seats? we still don't fully understand, especially if we do buy JR pass, are we guaranteed that we will get seats? (we know that we should exchange it to actual tickets later)
please if you could explain thanks :)
LO