Vocalist of Porno Graffitti. Born October 15, 1974, in Kurashiki City, Hiroshima Prefecture. Eldest son. His childhood dream was to be an athlete; he played baseball in elementary school and did track (long-distance/ekiden) and soccer in middle school. He began taking an interest in music in elementary school. He played baseball from 3rd to 6th grade and belonged to the Sakuragaoka Crogos, where Shindo served as manager. A massive fan of the Hiroshima Toyo Carp. He played soccer in 2nd grade, middle school, and high school, and remains a soccer lover. Influenced by Japanese artists such as Toshinobu Kubota, Kome Kome CLUB, THE YELLOW MONKEY, UNICORN, and X JAPAN. Likes: Stuffed cabbage, hamburger steaks, motsunabe, yakitori, sweet potato shochu, duck seiro soba, Downtown (comedy duo), Kunimasa Yamasaki, The City of Lost Children, Teru Miyamoto, Kiyoshi Shigematsu, Keigo Higashino, Kazufumi Shiraishi, bass fishing, the internet, medicinal soups, malatang, sweets, sugary treats, being particular about time spent at home, baseball, ramune candy (he once choked on it, which became a running joke among fans). Dislikes: Fakes, falsetto, deciding detailed concepts in advance, freeze-dried tofu (koya-dofu), meal kits (he doesn't hate them, but an ex-girlfriend once got mad at him over one).

Guitarist of Porno Graffitti. Born September 20, 1974, in Kurashiki City, Hiroshima Prefecture. Became interested in bands in middle school under the influence of BARBEE BOYS. Entered Innoshima High School in 1990. Initially joined the baseball club but quit after a year to join the light music club. One day during his high school years, he went to karaoke with his classmate Akihito Okano. Impressed by Okano's singing ability, he invited him to "participate as a chorus member for the autumn culture festival," leading Okano to join the band. A massive fan of the Hiroshima Toyo Carp. Manager and pitcher for the baseball team "Sakuragaoka Crogos." Likes: Samgyeopsal (Korean BBQ), curry, Hiroshima gourmet food, rice balls and fried chicken, okonomiyaki, alcohol, natto with lots of green onions, jakoten, coffee, baseball, golf, writing novels, daydreaming over real estate flyers and websites, motorcycles, cooking. Dislikes: Straightforward "cheer" songs, his early golf skills, cilantro, decluttering, his own argumentative nature, studying, having his lyrics criticized before a live show, social media misunderstandings, settling for choices just to get them over with, initial setups for electronics.

The protagonist of The Apothecary Diaries. She worked as an apothecary in the pleasure district with her adoptive father, but while out alone in the woods gathering herbs, she was kidnapped and sold as a low-ranking serving girl to the Rear Palace. After identifying the cause of the illness affecting Consort Gyokuyo and her daughter and reporting it anonymously, her skills as an apothecary were noticed by Jinshi. She was subsequently appointed as a lady-in-waiting to Consort Gyokuyo, though in reality, she functions as a pawn for Jinshi's schemes.

A eunuch in charge of managing the Rear Palace. His appearance is exceptionally beautiful, described with terms like "celestial smile" and "face of a flower." It is said that if his gender were different, he could topple a nation. Serving girls flush at the sight of him, and some faint at the sound of his honey-sweet voice. He receives nightly invitations from both lower-ranking consorts and male military officers.

A military official serving Jinshi (later the Emperor's guard and adjutant). Gaoshun is the name he took upon becoming a eunuch. He is a member of the Ma clan, who have protected the imperial family for generations. Due to this role, he is a childhood friend of the Emperor and Ah-Duo, having played with them in the Rear Palace as a child. He has served Jinshi since the master was young. He is a loyal, hardworking man who is often jerked around by his master's whims. While extremely diligent and attentive, he has a playful side and likes sweets and cats.

The Emperor's favorite consort, residing in the Jade Pavilion. A woman from the Western Capital with red hair and jade-colored eyes, she possesses a domestic side. She has a calm and bright personality but is also cautious and thoughtful. She only employs ladies-in-waiting she truly trusts; when Maomao was appointed, she had only four other attendants. Perhaps because of this, the hierarchy between Gyokuyo and her ladies is much more relaxed compared to other consorts.

A low-ranking serving girl in the Rear Palace who arrived around the same time as Maomao. She was sold to the palace by her impoverished farming family, but she never shows any sign of that dark past. A girl who treats Maomao kindly without prejudice. She loves gossip and sweet snacks and gathers all sorts of information; Maomao often uses snacks as bait to get information out of her.