dancing

A dotted sword cuts off the day and brings the evening.

ヰ is an obsolete katakana character, previously used to represent the sound wi.

Now, the sound wi is represented by the digraph ウィ(Ui).

Though ヰ is not used as a katakana character anymore, it does appear as a component in multiple Kanji.

When put into phosphorus, rice starts dancing.

You just want to dance, nothing but dancing.