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It's not yellow but beggars can't be choosers, eh? Amazon

You don't really need an ICE for such a short distance. Use bahn.de or the DB Navigator app to find your journey and buy a ticket. If you have the app, you don't need to print the ticket. You can show the ticket (QR code) in the app to the conductor.

While I won't be able to teach you myself, I've got a spare copy of this book that I could give to you. https://www.amazon.de/Genki-Integrated-Course-Elementary-Japanese/dp/4789014401

It teaches basic Japanese by using one or two short sample dialogues for each chapter with emphasis on a certain grammatical form. If you want to get any use out of it, it is vital to at least being able to read Hiragana, one of the three writing systems Japanese is composed of, though.

If you're interested just send me a message.