This is a bonus round for people who already live in this show's headspace. Yashiro's moment alone justifies the price of admission, a perfect crystallization of why the parent series matters at all. It's beautiful filler that knows exactly what it is: a love letter to the characters you've already chosen to care about.
Makoto finds himself caught between festival plans and unexpected encounters when Ryuuko drags him to the summer celebration. His night takes a strange turn once he arrives at the shrine, where Eio waits with her usual peculiar intensity. That's when Yashiro appears, brimming with confidence about her psychic abilities and convinced this is finally her moment to prove herself. She positions Makoto carefully, insists he step back three paces, and raises her arm with absolute certainty that something remarkable is about to happen. What unfolds is pure comedy chaos, the kind this cast specializes in. Yashiro's conviction clashes hilariously against reality while Eio observes with her characteristic deadpan expression. The night spirals into absurdity as the group navigates festival crowds, romantic confusion, and whatever supernatural nonsense Yashiro thinks she's unleashing. This bonus episode captures what makes the series work: character dynamics that swing between genuine affection and complete ridiculous mayhem, where nothing is quite serious and everything matters somehow.