き
spirit, temperament
Whatever it is you have got rising in you, and she wants to know how keen き any of it is for travelling: き.
Turns up in a huge number of set phrases: 気をつけて be careful, 気にしないで don't worry about it.
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Emaki is not affiliated with, or endorsed by, Kaishi 1.5k or its authors. The word, reading and meaning come from the Kaishi 1.5k deck, used with their permission. The mnemonic, the note and the kanji breakdown are original work, published under CC BY-SA 4.0.