第 18 集: Laura 進入青葉中學校並加入游泳社，隨後與怪物展開戰鬥。
Laura begins her first day in Aozora Middle School, where she finds herself enjoying some areas while struggling with other areas. Later on, Laura vents her frustration over struggling in some school subjects when Swim Club president Eiko Mizushima invites her over to her club, which Laura happily accepts. As Laura prepares to swim, Numeri, having been chosen by Butler to attack, summons a Zenzen Yaraneeda to attack the school's swimming pool forcing Manatsu and her friends to transform to engage the beast. Laura arrives later and witnesses her friends getting overpowered and despite Numeri's taunts, transforms to save her friends, salvage the monster's stolen motivation and lead her comrades to finishing the monster off. Afterwards, Laura ends up proving not being able to swim but Manatsu encourages Laura over the next day of school being fun as well. As such, Laura decides to join Manatsu's club. (Source: Wikipedia)