Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School vs The Testament of Sister New Devil
Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School has the higher audience score (9/10 against 7.9/10 for The Testament of Sister New Devil). The Testament of Sister New Devil is the older of the two (2015 against 2026). Both are animation, comedy shows, so they suit a similar mood.
Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School2026
VS 
The Testament of Sister New Devil2015
| Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School | The Testament of Sister New Devil | |
|---|---|---|
| Audience score | ★ 9.0/10 | ★ 7.9/10 |
| Year | 2026 | 2015 |
| Seasons | 1 | 2 |
| Genres | Animation, Comedy | Animation, Comedy |
| Country | – | – |
| Creator / director | – | – |
| Main cast | Yuto Uemura, Takehito Koyasu, Ami Koshimizu, Saori Onishi, Kentaro Kumagai | Yuichi Nakamura, Tomokazu Sugita, Keiji Fujiwara, Seiko Yoshida, Ayaka Asai |
Synopsis
Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid School
Hinako Konohana is the perfect young lady—graceful, elegant, and flawless… or so everyone thinks. Behind closed doors, she's a total disaster who can't handle basic chores! When ordinary student Itsuki Tomonari becomes her caretaker, he's thrown into 24/7 damage control, maintaining her "perfect" image. It's awkward, nonstop chaos—but it starts softening into something that feels like love…
The Testament of Sister New Devil
Toujou Basara is a high school student whose father has suddenly just remarried. His father then departs overseas leaving Basara with two new beautiful step-sisters. Little does he know, his new sisters, Mio and Maria are actually the new Demon Lord and a succubus!? Almost trapped into a life of servitude, Basara forms a reverse contract by accident and ends up becoming Mio's master! Hijinks ensue as Basara finds himself in one ecchi situation…
Where to watch
Where to watch Rich Girl Caretaker: I'm Secretly the Caregiver of the Most Popular Girl in This Rich Kid SchoolWhere to watch The Testament of Sister New Devil
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