Tsubasa receives a call from Yashamaru who tells her to come to the agency, because he has an important announcement. Upon arrival, Yashamaru announces that B-Pro will perform at the Japan Dome for Christmas Eve. They begin rehearsing for the event and when Halloween approaches, Tsubasa buys B-Pro some Halloween-themed doughnuts as a treat, prompting B-Pro to remember that Yashamura's birthday is coming soon, so they decide to throw a surprise party for him. As they shop for food and decorations, Tsubasa learns from B-Pro that Yashamaru has always been there for them since he created B-Pro. While waiting for Yashamaru, some disasters happen, but after some encouragement from Tsubasa, they re-decorate the apartment, but it ends with Yashamaru not coming.