ﾟ~~~(ﾟωﾟ=)~~~ﾟ ﾎﾟｹｰ

The half-width katakana at the end, ﾎﾟｹｰ, reads pokē, a word Japanese speakers use for someone who has gone blank and is simply spacing out. Its second character, the half-width katakana semi-voiced sound mark ﾟ, is the same character that turns up four more times earlier in the line: once at the very start, once on each side of the ω inside the parentheses, and once right after the ~~~ that follows the closing parenthesis. The six tildes are split evenly, three before the opening parenthesis and three after the closing one, but the two ends run in opposite orders, ﾟ~~~ on the left and ~~~ﾟ on the right, so on both sides it is the tildes that touch the parentheses. Inside there are only four characters, ﾟωﾟ=, with a single = just before the closing parenthesis, and one space separates ~~~ﾟ from ﾎﾟｹｰ. It fits the stretches when your head is empty and there is nothing in particular to do.