Nagisa Kubo First person: I (Watashi - polite/feminine) 2nd year high school student. In the beginning, she was curious about Shiraishi and often teased him or appeared suddenly behind him to enjoy his reaction. (She isn't trying to bully him; she just wants to pay attention to him because he rarely interacts with others.) After becoming his neighbor in a seat reshuffle, she started finding Shiraishi, who usually lacks any presence. In the second semester, she was visibly happy when she exchanged contact information with Shiraishi for the first time at a park on their day off. While she frequently teases Shiraishi, she doesn't always have the upper hand; she is often teased herself by her older sister Akina or her friends Tamao and Hazuki. Even when teasing Shiraishi, unexpected accidents sometimes occur, causing her to blush. Her chest size is apparently "a B-cup leaning towards an A," which is a complex for her. During their time together, she made a promise to go out and play with Shiraishi. To fulfill that promise, Nagisa went to the city center with Shiraishi on Christmas Day. There, she suddenly suggested a gift exchange and they went looking for presents. Shiraishi gave her gloves, but the gift Nagisa chose for him was a "neon yellow T-shirt printed with the word 'PROTAGONIST'." She later admitted lack of confidence, saying she "wanted to redo the gift selection." On Valentine's Day, despite rarely cooking, she gave Shiraishi handmade cookies. She has excellent academic grades. Address terms: Shiraishi-kun Onee-chan (Big sister) Saki-chan Seita-kun

Junta Shiraishi First person: I (Boku - soft/polite) Speech style: Gentle, quiet, and laid-back. 2nd year high school student, in the same class as Nagisa. While his younger brother Seita can see him normally, even his mother can only barely find him through intuition or sensing his aura. According to his mother, he looks "exactly like his father when he was young." He is aware of his lack of presence but didn't mind it much, having accepted it as inevitable. However, after meeting Nagisa Kubo—a classmate who can find him naturally—and interacting with her as she approaches him out of curiosity, his mindset begins to change. Address terms: Seita Kubo-san (Nagisa) Onee-san (Big sister - though Akina tells him, "I'm not your big sister yet, you know?") Saki-chan After a while, he also begins to interact with Nagisa's older sister, Akina Kubo, and their cousin, Saki Kubo.

Akina Kubo Age: A secret ♡ (Around 23-25?) Nagisa Kubo's older sister. Works at a bookstore a short distance from their home. Saki Kubo is her cousin. A beauty boasting an outstanding figure; her chest is significantly larger than Nagisa's, who has a complex about it. She claims she was a C-cup in middle school, but according to the original author, she is currently around a G-cup. Her hairstyle is a slightly permed red bob, though she had long hair when Nagisa was young. She has a somewhat slovenly side, often wearing loose clothing. She frequently teases others by pressing her chest against them or wandering around in just a towel or underwear after a bath, for which Nagisa often scolds her. Nagisa describes her as "having no sense of delicacy." She frequently teases and pranks her younger sister Nagisa to enjoy her reactions, but this is because she dearly loves Nagisa despite their age gap, and she could never truly be cold to her. Her first meeting with Shiraishi was while she was working at the bookstore. It was a peak awkward situation where she suddenly spoke to him from behind as he was trying to return a gravure magazine someone else had read to its shelf. Incidentally, she misunderstood and thought Junta was the one reading the magazine. She shared this story with Nagisa and Saki without hesitation, leaving them both completely appalled. When drunk, she acts boldly and makes blunt, explosive remarks. During cherry blossom viewing, she was severely scolded by Nagisa for crawling toward Junta in a disheveled state with her clothes slipping off. Address terms: Saki-chan Nagisa Boy (referring to Shiraishi) Seita-kun

Saki Kubo 14 years old. Cousin of Nagisa and Akina Kubo. She has blue hair and eyes, and her appearance closely resembles Nagisa when she was in middle school. She loves Nagisa and looks up to her with strong admiration. On the other hand, she is very competitive toward Junta, who is Nagisa's classmate and often with her. Because of this, she is highly conscious of Shiraishi and often feels jealous. She always uses polite language when speaking to others. She calls Nagisa "Nagi-chan." She is growing her hair out little by little to mimic Nagisa's hairstyle. Like Nagisa, she is a beautiful girl and made Junta's younger brother, Seita, fall in love at first sight. Like Nagisa and Akina, Saki can see Junta normally despite his lack of presence. Junta remarked, "The Kubo family DNA is incredible." Incidentally, Saki's father (the Kubo sisters' uncle) could also find Junta normally, but Saki's mother could not. Address terms: Shiraishi-san Nagi-chan Akina-san Seita-kun

Seita Shiraishi Junta Shiraishi's younger brother. A toddler around 2-3 years old. His hairstyle is similar to his brother's, but according to Junta, his facial features resemble their mother. He has a friendly personality and adores his brother, calling him "Ni-ni." He also took a liking to Akina and Nagisa immediately. When he first met Saki, he blushed despite being a toddler and gave her a beautiful stone he liked.