Tokyo – 8 days
Tokyo Tower, Imperial Palace & East Gardens, Kanda Myojin, Koishikawa Korakuen, Hibiya Park, Asakusa/Senso-ji, Zojoji/Mausoleum, Nakamise, Sumida Park, Samurai Museum, Odaiba/teamLab, DiverCity/Gundam, Aqua City, Seaside Park, Rainbow Bridge, Shibuya/Meiji/Yoyogi, Shibuya Crossing/Hachiko/Shibuya Sky, Ueno/Tokyo National Museum/Solamachi, Kawaguchiko/Fuji, Maxwell Aqua Park
Yokohama – 1 day
Minato Mirai, Landmark Tower, Cup Noodles Museum, Yamashita Park, Sankeien Garden
Kamakura – 1 day
Great Buddha/Kotoku-in, Hase-Dera, Tsurugaoka, Engaku-ji
Kanazawa – 2 days
Omicho Market, Kenroku-en, Kanazawa Castle, Higashi Chaya, Samurai District, Seison-Kaku, Oyama Shrine
Osaka – 4 days
Sumiyoshi, Shitennoji, Dotonbori, Kita/Minoo Park, Umeda Sky, Grand Front, Osaka Castle
Nara – 1 day
Todaiji, Deer Park, Heijo Palace, Yoshikien Garden
Koyasan – 1 day
Tokugawa Mausoleum, Baiten, Nobunaga grave, Gobyobashi, Senryo Pagoda, Okunoin, Kobo Daishi Mausoleum
Himeji – 1 day
Himeji Castle, Kokoen Garden, Shinsekai
Kyoto – 4 days
Kinkaku-ji, Ryoan-ji, Ninna-ji, Imperial Palace, Nijo, Pontocho/Nishiki, Higashiyama (Kiyomizu, Sannenzaka/Ninenzaka, Kodai-ji, Yasaka, Heian, Kyoto National Museum, Shinnyodo), South/Southeast (Fushimi Inari, Tofuku-ji, Sanjusangendo, Bishamon-do, Gion), Northeast (Ginkaku-ji, Philosopher’s Path, Honen-in, Nanzen-ji, Eikan-do)
Tokyo return – 2 days
Just fuck around and revisit areas you liked most
Feel free to steal it if you want. I spent 3 years making it so I guarantee you it is very good.