The Angel Next Door Spoils Me Rotten

The Angel Next Door Spoils Me Rotten (お隣の天使様にいつの間にか駄目人間にされていた件) is a Japanese light novel series written by Saekisan and illustrated by Hanekoto. Originally published online on Shōsetsuka ni Narō, SB Creative has released nine volumes of the series under their GA Bunko label since June 2019. Yen Press holds the license to publish the series in North America in English. A manga adaptation with art by Wan Shibata and composition by Suzu Yūki has been serialized via Square Enix's online manga magazine Manga Up! since January 2022. As of December 2023, its chapters have been collected in three tankōbon volumes. An anime television series adaptation produced by Project No.9 aired from January to March 2023. A second season has been announced.

Plot
Amane lives alone in an apartment, and the most beautiful girl in school, Mahiru, lives just next door, to which they are initially unaware of. They have almost never spoken despite being in the same class—until the day he sees her in distress on a rainy day and lends her his umbrella. To return the favor, she offers him help around the house, and before they realize, a relationship slowly begins to blossom as the distance between them closes.

Characters

 * Amane Fujimiya (藤宮 周)
 * The protagonist of the series, an awkward and lonely high school boy who lives alone in a small apartment. Because he is not good at organizing things, he often eats out or buys food from convenience stores. He starts to fall in love with Mahiru as he spends time with her, but constantly reminds himself not to as they are not dating, and out of fear of her rejecting him.
 * The protagonist of the series, an awkward and lonely high school boy who lives alone in a small apartment. Because he is not good at organizing things, he often eats out or buys food from convenience stores. He starts to fall in love with Mahiru as he spends time with her, but constantly reminds himself not to as they are not dating, and out of fear of her rejecting him.


 * Mahiru Shiina (椎名 真昼)
 * The main female protagonist, a gorgeous and kind young girl who lives alone in the small apartment next door to Amane. She is idolized at school because of her beauty as well as her academic and athletic abilities, and is given the nickname of Angel. She comes from a rich family, but she lives away from her parents as they are not on good terms. Though initially showing no feelings or affection for Amane, she starts to warm up to him as they bond, and realizes she might be falling for him as well. Amane's mother develops a fondness for her and appreciates her care for him.
 * Her name, Mahiru (lit. "noon"), which was given by her father, Asahi (lit. "morning sun"), represents the noon in between morning and night, which is the name of her mother, Sayo (lit. "little night").
 * Her name, Mahiru (lit. "noon"), which was given by her father, Asahi (lit. "morning sun"), represents the noon in between morning and night, which is the name of her mother, Sayo (lit. "little night").


 * Itsuki Akasawa (赤澤 樹)
 * Amane's friend and classmate. He gives advice to Amane regarding his relationship with Mahiru. He is Chitose's boyfriend and calls her "Chii" (ちぃ).
 * Amane's friend and classmate. He gives advice to Amane regarding his relationship with Mahiru. He is Chitose's boyfriend and calls her "Chii" (ちぃ).


 * Chitose Shirakawa (白河 千歳)
 * Amane's classmate and Itsuki's girlfriend.
 * Amane's classmate and Itsuki's girlfriend.


 * Yūta Kadowaki (門脇 優太)
 * Amane and Mahiru's classmate who is the ace of the school's track-and-field team. He is popular with girls and is nicknamed "Prince", though Mahiru finds him arrogant and annoying.
 * Amane and Mahiru's classmate who is the ace of the school's track-and-field team. He is popular with girls and is nicknamed "Prince", though Mahiru finds him arrogant and annoying.

Light novel
The light novel series originally began serialization online on the website Shōsetsuka ni Narō in December 2018. SB Creative then acquired the series and has published nine volumes under their GA Bunko label since June 2019, while Yen Press holds the license for English release in North America. The English translation is done by Nicole Wilder.

The illustrator was changed from Hazano Kazutake to Hanekoto in Volume 2.

Manga
A manga adaptation, which was announced on November 18, 2019, with art by Wan Shibata and composition by Suzu Yūki began serialization in Square Enix's online manga magazine Manga Up! on January 6, 2022. As of December 7, 2023, its chapters have been collected in three tankōbon volumes.

At Anime Expo 2023, Square Enix Manga & Books announced that they licensed the series for English publication. The first volume released on February 6, 2024.

A spin-off manga series illustrated by Puyo, titled The Angel Next Door Spoils Me Rotten: After the Rain (お隣の天使様にいつの間にか駄目人間にされていた件 after the rain), began serialization in the Manga Up! service on December 7, 2023. The series adapts the first short story volume of the light novels.

Anime
An anime television series adaptation was announced on January 4, 2022. It is produced by Project No.9 and directed by Lihua Wang, with supervision by Kenichi Imaizumi, scripts written by Keiichirō Ōchi, character designs by Takayuki Noguchi, and music composed by Moe Hyūga. The series aired from January 7 to March 25, 2023, on Tokyo MX and other networks. The opening theme song is "Gift" (ギフト) performed by Masayoshi Ōishi, while the ending theme song (for the most part) is a cover of Mongol800's "Chiisana Koi no Uta" (小さな恋のうた) performed by Manaka Iwami. But in episode 1, episode 7 and episode 12, the ending theme songs are respectively the opening theme song "Gift" (ギフト), a cover of Greeeen's "Love Song" (愛唄) performed by Manaka Iwami and a cover of Flumpool's "To You" (君に届け) performed by Manaka Iwami. Crunchyroll licensed the series.

A second season was announced during an event for the anime series on October 8, 2023.

Reception
The light novel ranked tenth in Takarajimasha's annual light novel guide book Kono Light Novel ga Sugoi! in the bunkobon category, and sixth overall among the other new series in 2020. The series has sold one hundred thousand copies by April 2020.

According to Oricon, in the first week of release the fifth volume sold 19,791 copies in Japan, which placed it first on the Oricon Weekly Light Novel chart.