Hikawa Hina

 is a first-year student at Keiho Women's University, the former student council president of Haneoka Girls' High School, as well as the guitarist of Pastel*Palettes. She is the younger, more bright-eyed twin of Sayo.

She has a habit of describing things with unusual ideophones, such as or.

Hina started playing the guitar after seeing Sayo do it, and then became a member of Pastel*Palettes after she passed an audition. At first Hina claimed to be in the band only to kill time, but after spending time with the other members (and thanks to Aya's efforts) she got more invested in it.

Appearance
Hina has sharp green eyes and light, wavy teal hair. Her bangs are brushed towards the right, and her hair is shoulder-length. Sections of her hair are worn on either side in a braid held by tiny yellow bows.

Her casual attire is fairly tomboyish, featuring pants or shorts and a gingham jacket worn on, or around her waist.

Personality
A natural genius with an impeccable memory, Hina can acquire and master new skills very quickly, often even with just one attempt. However, as a result, she tends to get bored of things quickly and is always looking out for new and interesting things to do. She is very cheerful and carefree, but her relaxed mindset also makes her unable to understand other people's emotions, and as such, she sometimes inadvertently insults them without noticing. She is intrigued by people who are different from her, and things she doesn't understand. Hina is also very candid, always being honest and sure of both herself and her actions. She also tends to be a troublemaker sometimes, and also likes teasing her friends, especially Aya, and has even admitted that she finds her crying interesting.

Unlike Sayo, who initially disliked being a twin, Hina seems to embrace it. She is very supportive of her sister and loves her regardless of how she treats her, though they often get into arguments due to their conflicting personalities. Hina would often pick up Sayo's hobbies in the hopes of spending time with her, but this would always backfire, as Sayo felt like Hina was just copying her and doing things better than her, thus feeding into her inferiority complex. However, as the story goes on, the two start getting along again and both Hina and Sayo start understanding each other more, and Sayo treats her sister more kindly once again.

Game Interactions
A list of characters Hina interacts with in the game (during Lives and in the dialogues at the end of every game).

Etymology
Hikawa (氷川): Hi (氷) means "ice" and Kawa (川) means "river".

Hina (日菜): Hi (日) means "sun, sunlight, daytime" and Na (菜) means "greens".

Trivia

 * Hina attends Roselia's shows to watch her sister perform, but when she is caught and told not to by Sayo, she attends their shows in disguise.
 * She has the same height as Kasumi, Tsugumi, Aya, and Kanon. She and Aya are the only members of Pastel*Palettes to match their height.
 * She can quickly remember difficult things due to her genius nature, like a scenario log or sheet music.
 * In Roselia's Band Story, it is also mentioned that Hina always gets the highest test scores.
 * Hina is fluent in English and speaks like a native.
 * Despite her high intelligence, she is bad with map symbols.
 * In one of her character lines, Hina says she enjoys playing volleyball.
 * The English translations of her two most common ideophones are "boppin'" and "zappin'".
 * Similarly to Kokoro, she was the only member of her own school's Astronomy Club. She adds that other girls at Haneoka refer to it as "The Weirdos Club", which deters any potential new members.
 * Hina's bright personality is hinted in her name, as "Hi" (日) means "Day", while Sayo's name contains the kanji for "Night" (夜) in it, furthering the contrast between the twins.
 * After the The Mole Person☆Transport Mission! event, she became interested in extraterrestrial and supernatural beings and cryptids.
 * In addition, she is an avid reader of the occult magazine "Supernatural Encounters," which she started reading frequently after noticing one of the issues was used as one of the movie props.
 * In the Zombieland Saga Revenge collaboration, her character design was based on, and her title was "Legendary Student Council President".