Day One: Tokyo
Embrace the culture shock and immerse yourself in this astonishing mega-city. Visit Senso Ji, Tokyo's most popular temple with its famous Thunder Gate and enormous red paper lanterns, head up to the observation deck of Tokyo Skytree (the 2nd tallest structure in the world after Burj Khalifa - pre booking required), and join a free tour of the Imperial Palace -Arrive by 12:15 to see if you can sign up for the free English tour of the inner grounds - head towards Kikyo-mon gate and look for the queue starting to form along the grass opposite. The first 300 people in line will be given a numbered ticket. You will need your passport for ID in order to register.
That evening, dive into the mad whirl of neon lights, maid cafes, electrical stores and game arcades in Akihabara. Have dinner in Creation Japanese Food 81+ , a cosy and authentic izakaya (a Japanese pub serving small plates) only 10 minutes walk from Akihabara station.
Day Two: Harajuku - Kyoto
Start your day early at Meiji-Jingu shrine - walk through cool, peaceful forest to this important Shinto temple dedicated to the revered Emperor Meiji and his wife.
Next, head to Mipig cafe in Harajuku (pre booking online required), where you can have 30 minutes of cuddle time with adorable snuffly bristly micropigs.
When you're ready, get the subway back to Tokyo station and catch the shinkansen to Kyoto.
Top Tip - use your JR Pass to make a free reservation on your chosen bullet train the day before to guarantee a seat, and ask to sit on the right hand side of the train for a chance to spot Mt Fuji out of the window.
Once in Kyoto, have dinner in the station at Sushi No Musashi, a conveyor belt sushi restaurant with many dishes costing only 164 Yen (around £1).
Why not book yourself into a pod hotel for a futuristic Japanese experience? One night is enough, so book elsewhere for the next 3 nights.