The Christmas special strips away the competition and idol drama to do what this franchise actually lives for: watching six guys genuinely care about each other while trying to pull off a party their manager is too swamped to help with. Haruka's absence flips the usual dynamic, suddenly these idols are the ones holding things together, and it reveals who they actually are when nobody's watching them perform. Memories surface while they're decorating and planning, which means you're getting the real reason fans stay: these characters matter to each other in ways that feel earned, not manufactured.

Haruka is too busy with her work at the agency to help the idols get ready for the Christmas party that Shining Agency is hosting. The members of Starish carry on with the preparations without her, and as they work, a number of memories and pieces of information come to light. The special was never broadcast and was instead included with the seventh Blu-ray and DVD volumes. It pairs comedy with romance in a festive holiday setting, and fans who enjoy spending time with the cast will likely appreciate it.