Luminas bring their tour to Osaka, where they attend a performance by the calculative comedy idol Nina Doujima. Afterwards, Nina meets up with girls, inviting them to Naniwa Grand Academy where she takes an idol course and trains her comedy routines. After watching Luminas' performance, Nina recalls the moment she became aware of her own smile and decided to become a comedy idol, deciding to throw away her usual calculations for her next performance and trust her own instincts.