Nestlé Japan is struggling to keep up with demand for Kit Kat chocolate bars, because teenagers believe they will bring them luck.
In Japanese "kitto katsu" is an exam season mantra meaning "I'll do my best to make sure I succeed". Now the language quirk has led thousands of mothers in Japan to pack the chocolate bars into children's lunchboxes.
Nestlé Japan has noticed a similar surge in previous years during exam season but this time the company has launched a new range of flavours to capitalise on the sales. The new flavours include lemon cheesecake, passion fruit and white chocolate.
Nestlé Japan said: "We're finding that parents are buying them for their children for exam days, but also some determined pupils are buying Kit Kats for themselves as a sort of reminder that they are really going to give these exams their best shot."
