7 Must-Watch Anime Featuring Age-Gap Romance Stories

1. A Girl & Her Guard Dog [Ojō to Banken-kun]
2. My Love Story with Yamada-kun at Lv999 [Yamada-kun to Reberu Kyū-hyaku Kyū-jū Kyū no Koi o Suru]
3. Koikimo [Koi to Yobu ni wa Kimochi Warui]
4. The World is Still Beautiful [Soredemo Sekai wa Utsukushii]
5. After the Rain [Koi wa Ameagari no Yō ni]
6. My Senpai is Annoying [Senpai ga Uzai Kōhai no Hanashi]
7. My Tiny Senpai [Uchi no Kaisha no Chiisai Senpai no Hanashi]

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1 - A Girl & Her Guard Dog [Ojō to Banken-kun]

This anime is adapted from the manga by Hatsuharu, which started serialization in 2018 and has been collected into nine volumes so far. The story follows Isaku Senagaki, the granddaughter of a yakuza boss, who yearns for a normal high school life. Her aspirations are complicated when her 26-year-old guardian, Keiya Utō, enrolls in her school to protect her, leading to a complex relationship that blurs the lines between duty and affection. The story explores themes of loyalty, protection, and forbidden love.

There is also a movie adaptation released in March 2025, starring Jesse Lewis and Riko Fukumoto, with SixTONES performing the theme song "Barrier."

2 - My Love Story with Yamada-kun at Lv999 [Yamada-kun to Reberu Kyū-hyaku Kyū-jū Kyū no Koi o Suru]

This anime is adapted from the manga created by Mashiro, which began serialization in March 2019 and has been compiled into ten volumes so far. The story is about Akane Kinoshita, a college student who, after a breakup, immerses herself in an online RPG. There, she encounters Yamada, a high school pro gamer. Their virtual interactions gradually transition into real-life encounters, leading to a budding romance that navigates the challenges of differing life stages and personal growth.

3 - Koikimo [Koi to Yobu ni wa Kimochi Warui]

This anime is adapted from the manga by Mogusu, which was serialized in Comic Pool and compiled into eight volumes. The story revolves around Ryo Amakusa, a 26-year-old businessman, who was enchanted with Ichika Arima, his sister's 17-year-old friend, after a chance encounter. Despite Ichika's initial rejections, Ryo's persistent advances lead to a comedic yet controversial exploration of their unconventional relationship.

4 - The World is Still Beautiful [Soredemo Sekai wa Utsukushii]

This anime is an adaptation of the manga written by Dai Shiina, which has 25 volumes. The story follows Princess Nike, who has the unique ability to summon rain. She enters into a political marriage with Livius, the young Sun King. What begins as a strategic alliance gradually develops into a heartfelt relationship, as they navigate the challenges of their age difference and the complex political landscape of their world.

5 - After the Rain [Koi wa Ameagari no Yō ni]

This anime is based on the manga by Jun Mayuzuki, which was serialized between 2014 and 2018, and compiled into ten volumes. The story centers on Akira Tachibana, a 17-year-old high school student, who develops feelings for her 45-year-old restaurant manager, Masami Kondō. The series delicately portrays their emotional connection, focusing on themes of unspoken feelings, and personal growth.

There is also a movie adaptation released in 2018, starring Nana Komatsu and Yo Oizumi. The theme song is "Front Memory" performed by Emiko Suzuki.

6 - My Senpai is Annoying [Senpai ga Uzai Kōhai no Hanashi]

This anime is an adaptation of the romantic comedy manga by Shiro Manta, which ran from 2017 to 2024 and consists of twelve volumes. The story follows Futaba Igarashi, a petite and diligent office worker who is constantly teased by her senpai, Harumi Takeda. Despite their age and personality differences, their daily interactions in the workplace gradually evolve into a charming and comedic romance.

7 - My Tiny Senpai [Uchi no Kaisha no Chiisai Senpai no Hanashi]

This anime is adapted from the manga by Saisou, which started serialization in 2020 and has been compiled into ten volumes so far. The story revolves around Shinozaki Takuma, a new office employee, who finds himself under the guidance of the petite and kind-hearted senior, Shiori Katase. Their close working relationship leads to a gentle and heartwarming romance.

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