In the second season of TV Yarou Nanaana, the struggling TV network TV Na Na Na gets acquired by the prominent streaming platform Nanazon Prime Video. With the takeover comes a ruthless wave of layoffs initiated by Nanazon's executives, targeting the Expedition Team first. This group, known for capturing the legendary creature Kiina on film, faces termination due to their lack of recent successful productions. In a bid to save their jobs, director Nanaoka, cameraman Nanamori, and assistant director Nanayama embark on a daring project: to unearth the hidden treasure of the Banakawa House and broadcast their expedition on television, a venture that previous networks had failed to bring to fruition despite substantial investments.