TV-Series
Description
Chisa Kotegawa, a first-year Mechanical Engineering student at Izu University, is central to the Peek-a-Boo diving club based in the Grand Blue shop. She possesses average height, short brown hair, brown eyes, and light skin. Her physique includes a prominently mentioned posterior and, among female peers, one of the smaller bust sizes—a detail she exhibits less concern about. Her personality is serious and level-headed, prioritizing academics and diving while avoiding the club's frequent drunken escapades due to extreme alcohol sensitivity, particularly to high-proof drinks. This avoidance stems from practical self-preservation, not coldness. Deeply passionate about scuba diving, she aspires to become a diving instructor. Pronounced stubbornness makes her resistant to changing decisions. Despite regular romantic attention at university, she maintains disinterest in dating.
Her family background involves complex dynamics: she is the daughter of Grand Blue owner Toshio Kotegawa and Sayaka Kotegawa, manager of a Palau diving shop branch. A misunderstanding initially strained her relationship with Sayaka; Chisa believed her mother ignored her diving instructor aspirations, unaware Sayaka's deafness in one ear prevented her hearing the request. This conflict resolved during a Palau trip when Iori Kitahara clarified the situation, leading Sayaka to gift Chisa underwater earphones as approval. Chisa shares a close bond with her older sister, Nanaka Kotegawa, a diving instructor who harbors an intense, almost obsessive affection for her, largely unnoticed by Chisa.
Her relationship with non-blood-related cousin Iori Kitahara (due to his father's adoption) evolved significantly. Initially viewing him with disgust after encountering him during a drunken, half-naked Peek-a-Boo initiation and dismissing him as "stupid," their shared diving passion later fostered mutual respect. She devised a scheme presenting Iori as her "fake boyfriend" to deter suitors, stemming from her aversion to romantic advances. This arrangement complicated when Kouhei Imamura's hypnotism experiment inadvertently transferred Chisa's love for the ocean onto Iori. Though the hypnotism wore off, she continued pretending it persisted—leaning on him physically and expressing possessiveness, like claiming girlfriend status against rivals such as Sakurako Busujima. Shifting emotions caused internal conflict, fluctuating between denial and jealousy when other women approached Iori.
Within Peek-a-Boo, Chisa maintains friendships despite reservations about the club's chaos. She is close to Aina Yoshiwara, unaware of Aina's envy, and receives frequent compliments on her cuteness from senior member Azusa Hamaoka. She occasionally participates in the club's milder antics, showing gradual integration while upholding core principles against alcohol and impropriety.
Key developments mark her growth: the Palau trip reconciled her with her mother and reinforced diving ambitions. The hypnotism incident and aftermath revealed increasing emotional openness toward Iori, though she continued struggling with vulnerability. Academically, as one of only three female students in her major, she consistently deflects the resulting male attention.
Her family background involves complex dynamics: she is the daughter of Grand Blue owner Toshio Kotegawa and Sayaka Kotegawa, manager of a Palau diving shop branch. A misunderstanding initially strained her relationship with Sayaka; Chisa believed her mother ignored her diving instructor aspirations, unaware Sayaka's deafness in one ear prevented her hearing the request. This conflict resolved during a Palau trip when Iori Kitahara clarified the situation, leading Sayaka to gift Chisa underwater earphones as approval. Chisa shares a close bond with her older sister, Nanaka Kotegawa, a diving instructor who harbors an intense, almost obsessive affection for her, largely unnoticed by Chisa.
Her relationship with non-blood-related cousin Iori Kitahara (due to his father's adoption) evolved significantly. Initially viewing him with disgust after encountering him during a drunken, half-naked Peek-a-Boo initiation and dismissing him as "stupid," their shared diving passion later fostered mutual respect. She devised a scheme presenting Iori as her "fake boyfriend" to deter suitors, stemming from her aversion to romantic advances. This arrangement complicated when Kouhei Imamura's hypnotism experiment inadvertently transferred Chisa's love for the ocean onto Iori. Though the hypnotism wore off, she continued pretending it persisted—leaning on him physically and expressing possessiveness, like claiming girlfriend status against rivals such as Sakurako Busujima. Shifting emotions caused internal conflict, fluctuating between denial and jealousy when other women approached Iori.
Within Peek-a-Boo, Chisa maintains friendships despite reservations about the club's chaos. She is close to Aina Yoshiwara, unaware of Aina's envy, and receives frequent compliments on her cuteness from senior member Azusa Hamaoka. She occasionally participates in the club's milder antics, showing gradual integration while upholding core principles against alcohol and impropriety.
Key developments mark her growth: the Palau trip reconciled her with her mother and reinforced diving ambitions. The hypnotism incident and aftermath revealed increasing emotional openness toward Iori, though she continued struggling with vulnerability. Academically, as one of only three female students in her major, she consistently deflects the resulting male attention.