Thirty Minutes of Dance Workouts on Livestream: The Darkest Moment of My Life

One day, a giant screen appears above Yokohama, Whole Cake Island, Beika City, Konoha, and Heian-kyo. A tall woman in workout clothes appears on the screen. She introduces herself as a fitness streamer and enthusiastically invites everyone to join her for a workout.

People across the different worlds see familiar faces appear on the giant screen, all wearing the same expression of utter despair, as if their hearts have died.

Fitness streamer: That's right! Mr. Fyodor, come do the Eight Brocades with me!

Osamu Dazai: Pfft.

Fitness streamer: Miss Charlotte Linlin, given your situation, let's start by learning this 30-minute workout for people with a lot of weight to lose! Also, please make sure to give up those high-calorie sweets!

Charlotte Perospero: How can we let Mama suffer? I'll have someone make sugar-free cakes right away!

Fitness streamer: Mr. Muzan, you're far too weak. You don't have enough yang energy. I suggest you get out in the sun more whenever you can.

Muzan himself: ...How is that any different from telling me to go die?

Everyone watching the livestream: Please! Let the next one be anyone but me!

Theme: Sweat it out, find joy, exercise, and get healthy