Nagi wakes up after her dream where she became the number three spot in the Hayate the Combat Butler character rankings and Hinagiku became the top spot. On that night, Sakuya and Isumi are battling an evil eye yōkai, however they fail to catch its remainder. The next day, Maria gives bag to Hayate to deliver to Isumi because she is not feeling well. Hayate meets Isumi's mother and grandmother at the Saginomiya mansion. Afterwards, Isumi is attacked by the giant evil eye yōkai and Hayate saves Isumi. After leaving the Saginomiya mansion, a small person wearing a mask in all while attacks Hayate. Their battle ends abruptly to reveal the person as Ginka Saginomiya, Isumi's great-grandmother. She reverts to her old self again, and sucks Hayate's blood to gain back her youth. Hayate goes back home to the mansion, dry of blood and horribly thin.
妖怪退治を生業とする鷺ノ宮の一族だが、伊澄の力の一部が失われていた。伊澄の母によると、力を取り戻すには『年齢が16歳で強くて頑丈だけど、女の子みたいな容姿をしていて、生まれつき運が悪くて執事をやっている…名前が「ハ」で始まる男の子の限界ギリギリまで追い詰められた時の生き血』が必要なのだというが…。
