[wikipedia] Protagonist of the series. She tends to be a little air-headed and easygoing. When her grandfather suffered a stroke her dad decided to move out to the countryside and take over the farm. Since Nao still had a semester of high school to finish, she convinced her parents to let her rent an apartment and live by herself, at least temporarily. Then she finds out with surprise that someone else had rented the same flat: Hisashi Uehara. The landlady suggests that Nao and Hisashi can just live together; this way, rent will even be cheaper, and so they do. At first, she didn't notice that she liked Hisashi until she got a little counseling from her friends. She starts to date Hisashi later in the story. In the end of the manga, she and Uehara move into different apartments because the landlady of their previous apartment had a son who came back from America and had wanted to rent out a room for him and his girlfriend. When Nao agrees, she looks for other apartments for two and learns that Uehara wishes to live alone to become independent. Although at first shocked and upset, she respects his decision only to find out that the two now live next door to each other because of the help of the landlady of their previous apartment and Nakatsugawa.

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)

Yuka Tokumitsu is a Japanese voice actor.

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.