Meiko ponders to procure yam after thinking again about how to let Yutaro eat natto. Yutaro, on the other hand, invites the engineering expert, who was injured on the stairs, to Kaimeiken again. Takemoto, who liked Kaimeiken, decided to lend a hand to repair the stairs. Meiko struggles with unfamiliar dishes to make natto easier to eat. The masterpiece that Meiko made while being taught by Iku is finally presented in front of Yutaro.