Ep. 12: Kotetsu kidnaps Nagi while Hayate searches in Hermione attire during Hinagiku's birthday

Kotetsu, enraged upon discovering Hayate is male, kidnaps Nagi and demands her rescue. While Hayate searches for her wearing the embarrassing Hermione outfit, Hinagiku attends a surprise birthday party where she is asked to sing "A Cruel Angel's Thesis." Misinterpreting a challenge as a private meeting, she waits alone. Nagi confronts Kotetsu about his shallow affection, causing him to realize his error and confess to Hayate, only to be struck by Nagi. Nagi dispels the Hina Doll curse, restoring Hayate to normal. The pair heads home, but Hayate realizes he missed his appointment with Hinagiku and rushes to the clock tower, finding her asleep.

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