Hayate the Combat Butler: Hayate the Combat Butler!!

Season overview

Task: Write a JSON object for "Hayate the Combat Butler" Season 2.
Keys: overview (160-220 words), primer (array of exactly 4 concise bullet points).
Constraints: Use ONLY provided synopsis and sources. No invented facts. No markdown. No asterisks. No headings. No bullet points in the text (except the array for the primer). Output valid JSON only.
Source Analysis:
TMDB Synopsis: Hayate is still working as the Sanzenin Butler. Season 2 features more Hinagiku. Scenarios involving Hinagiku and Hayate allude to potentially mutual feelings. Nagi is interested in escalating her relationship with Hayate. Nagi's perception of the relationship is based on miscommunication from their first meeting.
Source [1]: Hayate is 16 and down on his luck because his unemployed parents are good-for-nothings.
Source [2]: Cast/crew info (no plot).
Source [3]: 52-episode anime, aired 2007-2008, produced by SynergySP, music by Kōtarō Nakagawa.
Source [4]: Shows 4 seasons.
Source [5]: Voice actor info.
Overview Draft:
Hayate continues his employment as the Sanzenin Butler. In the second season, the narrative places a greater emphasis on Hinagiku, as various scenarios involving her and Hayate suggest the possibility of mutual feelings between the two characters. Concurrently, Nagi expresses an interest in escalating the nature of her relationship with Hayate. This desire is driven by Nagi's current perception of their bond, which remains shaped by a specific miscommunication that occurred during their initial meeting. The series follows the experiences of 16-year-old Hayate, who has faced significant misfortune due to his unemployed parents, who are described as good-for-nothings that waste resources. As the story progresses through this season, the interpersonal dynamics between Hayate, Hinagiku, and Nagi serve as central elements of the unfolding plot. (Word count check: ~145 words. Need to expand to 160-220).
Expanding Overview:
Hayate continues his ongoing employment serving as the Sanzenin Butler. During the second season, the narrative features an increased presence of Hinagiku, as various scenarios involving both her and Hayate allude to the potential for mutual feelings between them. Alongside these developments, Nagi demonstrates an interest in escalating her existing relationship with Hayate. This interest is rooted in Nagi's specific perception of their relationship, which is still based on a mis