Must Not
A wing is something you must not do anything with. Wings are fragile (think bird's wings and butterfly's wings) and sometimes dangerous (like the wings of a plane) and you must not touch them, or even go near them! You MUST NOT. You. MUST. NOT.
もち
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None
Apart from staying away from wings, the other thing you must not do is eat mochi (もち). Okay, they're not fragile or dangerous, but I love mochi and I don't want you eating them.