Girlfriend, Girlfriend

Naoya Mukai has been infatuated with his childhood friend Saki Saki for years. He starts dating her, but his life takes an unexpected turn when Nagisa Minase confesses her feelings to him. Naoya initially tries to reject Nagisa, but guilt and concern for her feelings eventually lead him to propose a polyamorous arrangement. This unconventional setup, involving both Saki and Nagisa, sets off a complex web of relationships.