This year has delivered an exciting mix of upcoming anime 2025, including both returning favorites and bold new entries. Harem anime, with their blend of romance, comedy, and sometimes action, continue to captivate audiences with their unique storytelling and memorable characters. Below, I’ve curated a detailed toplist of the best harem anime 2025, featuring five standout titles. Each review covers the storyline, characters, graphics, and my personal impressions, ensuring you have all the details to pick your next binge-worthy series. Whether you’re a seasoned harem fan or exploring new harem anime 2025, this guide is your ticket to the year’s most engaging titles.
1. The 100 Girlfriends Who Really, Really, Really, Really, Really Love You Season 2
- Release Date: January 12, 2025
- Studio: Bibury Animation Studios
- Source: Manga

The 100 Girlfriends Who Really, Really, Really, Really, Really Love You Season 2
Storyline
The 100 Girlfriends Who Really, Really, Really, Really, Really Love You Season 2 continues the absurdly hilarious journey of Rentaro Aijima, a high school student who, after 100 rejections, is promised by God that he’ll have 100 girlfriends who truly love him.
This season builds on the first, introducing new soulmates while deepening the relationships with existing ones. The plot thrives on comedic chaos, with Rentaro juggling his ever-growing harem through outrageous situations, heartfelt moments, and unexpected twists. The series balances its over-the-top premise with genuine emotional beats, making it a standout in the harem genre.
Characters
- Rentaro Aijima: The kind-hearted protagonist who sincerely loves each girlfriend, making him a relatable anchor amidst the chaos.
- Nano Eiai: His tsundere childhood friend, whose fiery personality contrasts with her deep affection for Rentaro.
- Shizuka Yoshimoto: A mature, book-loving girlfriend who often calms the group’s wild dynamics.
- Hahari Hanazono: A yandere with an obsessive streak, adding comedic tension to the harem.
- New Girlfriends: Each new character brings a unique personality, from quirky to endearing, keeping the dynamic fresh.
Bibury Animation Studios delivers vibrant, expressive animation that enhances the series’ comedic and romantic moments. The character designs are colorful and distinct, with exaggerated expressions that perfectly capture the humor. Backgrounds are detailed, from bustling school settings to cozy romantic scenes, making every episode visually engaging. The animation quality remains consistent, ensuring that even the most absurd scenarios look polished.
Personal Impressions
This series is a love letter to harem comedy fans. Its absurd premise, 100 girlfriends!, is executed with such charm and humor that it’s impossible not to smile. Fan reactions on X, like one user calling it “peak harem with peak female characters” with a 9/10 rating (X Post), echo my enthusiasm. The balance of humor, heart, and chaos makes it a must-watch for anyone seeking a lighthearted escape. If you loved the first season, Season 2 cranks up the fun while staying true to its roots.
2. Rent-a-Girlfriend Season 4
- Release Date: July 2025
- Studio: TMS Entertainment
- Source: Manga

Rent-a-Girlfriend Season 4
Storyline
Rent-a-Girlfriend Season 4 continues the emotional rollercoaster of Kazuya Kinoshita, a college student who rents a girlfriend, Chizuru Mizuhara, only to find their relationship growing far beyond a transaction.
This season dives deeper into their evolving bond, complicated by Mami Nanami’s schemes and Ruka Sarashina’s bold advances. Promotional posts on X suggest a vacation setting where “nothing is going to plan” (X Post), hinting at new drama and a major confession. The series blends romantic tension with comedic mishaps, keeping viewers hooked on Kazuya’s messy love life.
Characters
- Kazuya Kinoshita: A flawed but relatable protagonist whose indecision drives the drama, yet his growth keeps you rooting for him.
- Chizuru Mizuhara: The poised rental girlfriend whose strength and vulnerability make her a fan favorite.
- Mami Nanami: Kazuya’s manipulative ex, whose actions stir up conflict and keep the stakes high.
- Ruka Sarashina: A fiery rival who genuinely loves Kazuya, adding spice to the love triangle.
TMS Entertainment delivers smooth, polished animation with detailed character designs that shine in emotional and comedic scenes. The expressive faces capture every blush and awkward moment, while vibrant backgrounds, like cityscapes and vacation spots, enhance the storytelling. The visual consistency elevates the series’ emotional depth and humor.
Personal Impressions
Rent-a-Girlfriend is a cornerstone of modern harem anime, blending romance, drama, and comedy in a way that feels both relatable and addictive. While not a pure harem, the multiple female characters vying for Kazuya’s affection give it that vibe. Season 4’s anticipation is palpable, with fans eager for more of Chizuru and Kazuya’s journey. As someone who loves character-driven stories, I’m excited to see how this season balances heart and humor, making it a top pick for 2025.
3. The Rising of the Shield Hero Season 4
- Release Date: Summer 2025
- Studio: Kinema Citrus, Drive
- Source: Light Novel

The Rising of the Shield Hero Season 4
Storyline
The Rising of the Shield Hero Season 4 continues Naofumi Iwatani’s epic journey as the Shield Hero in a fantasy world. After overcoming betrayal, Naofumi leads a party of loyal companions, including Raphtalia and Filo, to battle the waves of catastrophe.
This season introduces new challenges and deepens Naofumi’s bonds with his party, with harem elements emerging from his relationships with female companions. The mix of action, drama, and romance makes it a unique entry in the harem genre, appealing to fans of both isekai and character-driven stories.
Characters
- Naofumi Iwatani: A compelling protagonist who grows from a betrayed outcast to a strong, compassionate leader.
- Raphtalia: A demi-human who becomes Naofumi’s closest ally, with subtle romantic undertones.
- Filo: A playful filolial whose loyalty and energy add warmth to the group.
- Other Companions: Naofumi’s party includes several female characters, each with distinct personalities, contributing to the harem dynamic.
Kinema Citrus and Drive deliver stunning animation, with dynamic action sequences and beautifully crafted fantasy worlds. The character designs are expressive, capturing both the intensity of battles and the tenderness of personal moments. The visuals elevate the series’ emotional and action-packed storytelling.
Personal Impressions
While primarily an isekai, The Rising of the Shield Hero weaves harem elements into its narrative, making it a standout for fans of both genres. Naofumi’s growth and his relationships with Raphtalia and others are deeply satisfying. The series’ dark themes and strong character development make it a compelling watch, and I’m eager to see how Season 4 expands on these strengths.
4. A Couple of Cuckoos Season 2
- Release Date: Summer 2025
- Studio: Shin-Ei Animation, SynergySP
- Source: Manga

A Couple of Cuckoos Season 2
Storyline
A Couple of Cuckoos Season 2 builds on its unique switched-at-birth premise, following Nagi Umino and Erika Amano as they navigate their arranged engagement and tangled feelings. Nagi’s affection for Erika’s stepsister, Sachi, complicates matters, while Erika grapples with her growing feelings for Nagi. The season promises more romantic comedy, family drama, and heartfelt moments as the characters confront their emotions and relationships.
Characters
- Nagi Umino: A kind-hearted student torn between his feelings for Sachi and his engagement to Erika.
- Erika Amano: A confident, beautiful heiress whose evolving feelings for Nagi add depth to her character.
- Sachi Umino: Nagi’s shy stepsister, whose affection for him creates a complex love triangle.
- Supporting Cast: The families of Nagi and Erika add humor and drama, enriching the story.
Shin-Ei Animation and SynergySP deliver crisp, vibrant animation that suits the series’ comedic and romantic tone. The character designs are expressive, capturing the characters’ emotions, while the backgrounds, from school settings to family homes, enhance the narrative.
Personal Impressions
This series stands out for its fresh take on the harem genre, with a premise that blends family dynamics with romance. The chemistry between Nagi, Erika, and Sachi is engaging, and Season 2 promises to deepen these relationships. As a fan of romantic comedies, I find the mix of humor and heart in A Couple of Cuckoos irresistible, making it a top contender for 2025.
5. Anyway, I’m Falling in Love with You
- Release Date: January 9, 2025
- Studio: Typhoon Graphics
- Source: Manga

Anyway, I’m Falling in Love with You
Storyline
Anyway, I’m Falling in Love with You is a refreshing reverse harem anime 2025, centering on Mizuho, a young woman whose life changes after a confession from her childhood friend. This revelation shakes up her relationships with the male characters around her, leading to romantic tension and personal growth. The series explores how love reshapes long-standing bonds, offering a female-led perspective on the harem genre.
Characters
- Mizuho: The relatable female protagonist, navigating her feelings amidst a group of male suitors.
- Childhood Friend: The catalyst for the story, whose confession sparks romantic developments.
- Other Male Characters: A diverse group of friends and acquaintances, each with unique traits, vying for Mizuho’s affection.
Typhoon Graphics delivers modern, appealing animation with a focus on emotional expressions and interactions. The visuals are clean and vibrant, enhancing the romantic comedy elements and making every scene engaging.
Personal Impressions
As a reverse harem anime 2025, this series offers a fresh perspective by focusing on a female lead surrounded by male love interests. The premise of evolving childhood friendships into romantic possibilities is intriguing, and the emotional depth promises to resonate with fans of shojo and romance. I’m excited to see how Mizuho’s journey unfolds, making this a must-watch for those seeking something different in the harem genre.
Why 2025 is a Great Year for Harem Anime
The new harem anime 2025 lineup showcases the genre’s diversity, from comedic romps like The 100 Girlfriends to emotional dramas like Rent-a-Girlfriend. The inclusion of a reverse harem title like Anyway, I’m Falling in Love with You highlights the genre’s evolution, catering to a broader audience. These upcoming anime 2025 are accessible on platforms like Crunchyroll and HIDIVE, making it easy for fans to dive in.
Final Thoughts
The best harem anime 2025 offer something for every fan, whether you’re drawn to absurd comedy, heartfelt romance, or action-packed isekai with harem elements. The 100 Girlfriends delivers laughs, Rent-a-Girlfriend tugs at the heart, The Rising of the Shield Hero thrills with adventure, A Couple of Cuckoos charms with its unique premise, and Anyway, I’m Falling in Love with You refreshes with its reverse harem perspective. As an anime lover, I’m thrilled with this year’s offerings and can’t wait to see how these stories unfold. Hold your breath, and don’t forget to check out news at Shinime.blog while waiting for these anime to air!