第 8 集: Kazuki打破姐姐的游泳紀錄，引發Hatsune的挑戰與心理戰。

8

Kazuki breaks her sister's record in swimming, which gets her a challenge from her sister for the upcoming swimming competition. Throughout the episode Hatsune attempts to discourage Kazuki by mentally inflicting damage to Kazuki, although Hatsune's reason for this is because she wants Kazuki to take this seriously. As the episode comes to close the question still remains, 'Who will win the serious race between the loving sisters?'. (Source: Wikipedia)