Nodoka and Hinata join some of their classmates for work experience at Chiyu's family inn. Also joining them is Asumi and Chiyu's little brother Toji, who hopes to become more like his sister. Chiyu instructs Toji and her friends on good hospitality, but Toji begins to struggle when his hard work and kindness cause him to get into troublesome situations, leading Chiyu to scold him. However Pegitan, who had secretly watched Toji, asks Asumi to encourage him, which Chiyu overhears. Suddenly Guaiwaru appears, having powered himself up using a Mega Part like Shindoine, and transforms one of the inn guests, Mr. Chikara, into a GigaByogen...