One of Nao's best friends, and very loyal. She is boy-crazy and is very knowledgeable when it comes to that. She also keeps a book of all the hot boys she knows. Although Marina is very knowledgeable about them, she says she would never go out with anyone she doesn't like.  ~!Later in the story, she starts going out with Mi-chan. Usually, once starting to date a boy, she breaks up with him shortly after. Her only serious boyfriend has been and is still Mi-chan. However, when she gets into a fight with him about her hair, she visits him with Nao's advice and sees him with another girl. However, the girl with Mi-chan was someone in his study group. Marina confesses that she knew Mi-chan was not cheating on her but feels insecure about their relationship because she worries that he will establish a new life at his new high school and that he will no longer have room for her and says she may break up with him. He waits for her to tell her that he does not want them to break up and she tells him she was only joking. He sighs with relief and Marina kisses his cheek, ending their fight.!~ She also takes computer classes.  (Source: wikipedia)

Nao Yoshikawa stays behind to live by herself when her parents leave to inherit her grandpa's farm in the country. On the day she moves into her new apartment she soon discovers that it was rented also to Hisashi Uehara - a cute, super-cool and popular guy from her school. Not only did their housing agency unexpectedly close down, the landlord of the apartment tells them that they had to pay more for their apartment then they had expected. With both no money and no home to return to, Nao and Hisashi decide to live together as flatmates.
 
(Source: Anime News Network)
 
Contains the one-shot: Kare to Kanojo ni Hanataba wo (His and Her Fortune Bouquet) in volume 1 
Kazuya is a young model who has always had a crush on Harumi but she couldn't care less! That is until Kazuya losses his memory, does Harumi possibly harbor feelings for Kazuya?

One year has passed since Nao and Uehara accidently moved into the same apartment. Since then, they have become an official couple. With Uehara's 16th birthday coming up, Nao's biggest worry is what to buy him. Everything is going smoothly- that is, until Nao realizes Uehara's birthday has already passed and she spent it acting as a cut model for the handsome hair stylist, Asai.
 
(Source: Anime News Network)

The sequel to Good Morning Call. The series takes place a few years after GMC. Nao and Hisashi are in college and are living in across from each other in an apartment complex. When Nao's father pays a visit and learns of Hisashi he takes Nao back to her family. Hisashi realizes how much he hates being away from her and proposes.

Marina Konno