Girlfriend, Girlfriend
カノジョも彼女
Kanojo mo Kanojo

The series follows Naoya Mukai, who had recently begun a relationship with his childhood friend Saki Saki. Nagisa Minase, his classmate, decides to confess her feelings to him as well, and after some initial hesitation, he accepts her request to be her boyfriend as well. Naoya decides that he will have both Saki and Nagisa as girlfriends at the same time. As Naoya currently lives alone due to his parents living elsewhere for work, Saki and Nagisa decide to live with him. The series follows their daily school life, as Naoya, Saki, and Nagisa experience difficulties and challenges in maintaining their love triangle relationship.

Naoya Mukai has recently begun dating his childhood friend Saki Saki. Another girl, Nagisa Minase, confesses her love to him, but he turns her down. However, when she decides not to give up, Naoya finds her so cute he decides to convince Saki to accept Nagisa as his second girlfriend. Saki is so overwhelmed by Nagisa’s cuteness she insists on becoming friends straight away. Naoya manages to explain his desire to date them both, and though Saki punishes him, she is eventually convinced by Naoya’s honesty and Nagisa’s cuteness and gives permission. Naoya suggests they move in together as he lives alone. On the first night, Saki is impressed by Nagisa’s housewife skills, but is slightly jealous of her larger breasts. Nagisa offers to let Saki sleep with Naoya first, but Saki admits their relationship is not sexual yet. This leads to an awkward conversation where Naoya admits he would like a threesome. Saki admits she is tempted because of Nagisa’s cuteness, but still insists Naoya is a pervert for suggesting it. Naoya decides to delay having sex until they are all more comfortable with each other, but is surprised when Saki seems disappointed, though she violently denies it. For their first night, Naoya suggests everyone sleep in the same room. Nagisa moves into Naoya’s futon to talk, causing Saki to think they are having sex. As such, both girls move into Naoya’s futon to be close to him. Later that night, Nagisa decides to spy on Saki’s phone to learn more about her, only to find it contains multiple searches about sex. Saki almost catches her, but Naoya takes the blame and is punished. Nagisa reveals while preparing her confession she forgot to attend school. Naoya insists they spend all day studying, though it soon becomes clear Nagisa struggles at math. Despite claiming she has to use the bathroom as an excuse to cheat, she gets the answers wrong anyway. At school, Saki insists no one can know about their relationship, but when Naoyo sees Nagisa has no friends, he attempts to reveal everything, only for Saki to stop him. Saki reveals she is worried people will think Naoya no longer cares about her. However, when Nagisa agrees they should only interact at home, Saki is touched by the offer and instead decides they can interact in secret where others cannot see them.

Naoya Mukai (向井 直也, Mukai Naoya)
Saki’s childhood friend. He confessed to her every month until she accepted, but also agrees to take Nagisa as a girlfriend as well as he found her to be cute.

Saki Saki (佐木 咲)
Naoya’s childhood friend and his initial girlfriend. She shares a first and last name as her parents thought such a name would be cute. She has a complex about her small chest, especially when compared to Nagisa.

Nagisa Minase (水瀬 渚, Minase Nagisa)
A classmate of Naoya, who becomes his second girlfriend after confessing to him. She fell in love with Naoya as he inspired her to pursue skills that she was good at.

Rika Hoshizaki (星崎 理香, Hoshizaki Rika)
A schoolmate of Naoya. She is secretly a popular vlogger who goes by the online alias Milika (ミリカ, Mirika). She intends to become Naoya’s third girlfriend, going as far as stalking him and his girlfriends, as well as camping outside his house to get his attention.

Shino Kiryū (桐生 紫乃, Kiryū Shino)
Saki’s best friend and classmate. She discovers Naoya’s romantic arrangement with Saki and Nagisa and she disapproves of it. It is later discovered that she has feelings for Naoya as well.

Mr. Hoshizaki (ミリカ父, Mirika Chichi)
Rika and Risa’s father.

Risa Hoshizaki (星崎 理沙, Hoshizaki Risa)
Rika’s younger sister.