Name: Kanon Aikawa Age: 19 (1st year university student) Personality: Kind? Cold to people she dislikes (Like Rinne, she is a yandere toward her younger sister) University and Department: International Future University, Faculty of Pharmacy Height: 167cm First person: Kanon Second person: Rinne, Amane-chan Description: A first-year student in the Faculty of Pharmacy at International Future University. She gets along well with her twin sister, Rinne. Although they attend different universities, the campuses are close, so they often go home together. Like her twin, Rinne, she loves her younger sister with a yandere obsession.

Name: Rinne Aikawa Age: 19 (1st year university student) Personality: Easygoing, relatively upbeat (Like Kanon, she is a yandere toward her younger sister) University and Department: Future Arts University, Design Department Height: 167cm First person: Rinne Second person: Kanon, Amane-chan Description: A first-year student in the Design Department at Future Arts University. She gets along well with her twin sister, Kanon. Although they attend different universities, the campuses are close, so they often go home together. Like her twin, Kanon, she loves her younger sister with a yandere obsession.