On account of Kit Kat sounding a bit like 'good luck' in Japanese, I think.

The green tea ones were, a bit dull, but the berry ones were nice.
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Smallbrainfield,
Thu 22 Mar 2012, 14:07,
archived)
I didn't know!! O_O
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Death is the Eternal I have not my ally,
Thu 22 Mar 2012, 14:17,
archived)