Welcome to a carrd for Harada's BL manga The Song of Yoru and Asa, also called Yoru to Asa no Uta or 「よるとあさの歌」。You can also find out more information on the fandom wiki for
The Song of Yoru and Asa Encore.

The summary on the back of volume one of The Song of Yoru & Asa.
Names and descriptions of all the characters in the manga.
All the volumes, dojinshi, chapters, and inserts featuring Yoru & Asa.
More information about Harada, the author of Yoru & Asa.
For more specific information or questions, feel free to DM me!

Asaichi, looking to be more popular with the ladies, starts a band with his friends. Leading his new, small-time band as the vocalist, he is joined later by a supporting bassist named Yoru.However, during a bit of post-concert "fun," there was a small accident, bringing Yoru's feelings for Asaichi to light.Normally the thought of being with another man would disgust him, but after Asaichi heard Yoru sing, he was overcome with lust, and violently desired to feel Yoru day after day.This is a story that centers on Yoru and his one-sided love, his rapidly growing desires, and intense jealousy... Where will these feelings take us?

Asaichi sings vocals in a band, a career that he hoped would help him pick up chicks. Initially, as a straight guy, he's disgusted by Yoru's overwhelming attraction to him, and the disgust remains even as his feelings towards Yoru turn to lust. When Yoru helps him after he's attacked by the yakuza Iori and Tomoki, Asaichi starts to realize that maybe his feelings for Yoru are something more. Finally, after months of thinking over his feelings, he asks Yoru to date him.Despite Asaichi's initial shallow intentions for starting his band, he has since grown invested in its success. He's somewhat short with an average voice and looks. Asaichi is optimistic and enthusiastic, but he tends to be hot-headed and has a bit of an inferiority complex.

ヨル
Yoru has been one-sidedly in love with Asaichi since watching Asaichi's band perform in middle school. Driven by his love for Asaichi, he also becomes a vocalist in his own band; when his band breaks up, he learns bass to fill in a newly empty spot in Asaichi's band. He's open with his feelings towards Asaichi, and is willing to accept any relationship with him, even if it's one-sided and far from healthy. Yoru helps Asaichi after he's attacked by Iori and Tomoki, and is overjoyed when Asaichi asks him out a few months later.Yoru is primarily motivated by his love for Asaichi, including in his career choice, though he's naturally a gifted singer and songwriter. His voice and appearance are so exceptional that he's the most popular in the band, to the extent of attracting stalkers. He's generally ditzy and absent-minded.

Asaichi and Yoru's band: Asaichi on vocals, Yoru on bass, Kayoi on guitar, Futsu on drums.

カヨイ
Guitarist of Morning Glory and one of Asaichi's oldest friends. The mature one in the band.

布津
Drummer of Morning Glory and one of Asaichi's oldest friends.

しおり
Hostess and a long-time fan of Yoru's, but has only hooked up with Asaichi.

いおり
Shiori's older brother and a yakuza boss. Attracted to Yoru. One of Asaichi's sources of trauma.

友田友紀
Iori's assistant and one of Asaichi's source of trauma. Kōki's brother from One Room Angel. Yata's friend from Yatamomo.

ひより
Yoru's stalker, later in love with Asaichi. Kuzuya's coworker from Happy Crappy Life.

日留川
Bassist in Yoru's old band, now works in his family's business. He taught Yoru how to play bass.

ユージ
Ex-bassist of Morning Glory. Kasuya's coworker from Happy Crappy Life.

コマ
Osaka acquaintance, also was part of another band. Kuzuya's friend from Happy Crappy Life.

ゆ
Shiori's friend and a fan of Morning Glory.

-
Shiori's friend and a fan of Morning Glory.
よるとあさの歌
The original book, published in 2015. (Content warning: R18, noncon, dubcon.)
よるとあさの歌 Ec
The sequel, published in 2018. (Content warning: R18, dubcon)

ある男の悲劇
A dojinshi that fills in the gaps of original volume's chapter 5, Asaichi's trauma scene. (Content warning: violent noncon)

Co同2020
A crossover dojinshi with characters from seven of Harada's mangas, who meet at the bar where Momo works.

Co同2020 R18
A crossover between Color Recipe and The Song of Yoru and Asa, feat. AsaYoru sex. (Content warning: R18)

よるとあさの歌 ドラマCD
Drama CD for the original book.

よるとあさの歌 Ec ドラマCD
Drama CD for the sequel.

やたもも
In chapter 5.5 of Yatamomo, Asaichi and Yoru meet Yata and Momo at a pachinko parlor.
ある男の悪夢
A rough mini-comic where Asaichi has a nightmare about Tomoki and Iori.
Google Drive folder of a collection of Harada's Yoru/Asa comics from Pixiv, Twitter, and Tumblr.

Feel free to reach out to me on twitter or tumblr (my carrd) if you have any questions or want help accessing anything that's not linked here.