A Girl & Her Guard Dog

Sawako Kuronuma looks miserable on the outside, but is actually a positive-minded girl, who looks up to Shota Kazehaya, a sociable and friendly boy. Perceiving Sawako's good intentions, he secretly has feelings for her. Sawako meets Kazehaya and makes her first friends, Chizuru and Ayane but in comes Kurumi proclaiming her love for him... Will Sawako and Kazehaya ever find out about each other's feelings?

Ninako Kinoshita has never been in love until an encounter with the school's most popular boy, Ren Ichinose, leads the two to befriending each other. Ren's patient and kind personality is a far cry from his unapproachable idol status at school, and soon Ninako falls in love with him. However, she must cope with the fact that he already has a long-time girlfriend.

Kogure Nao is a shy and cute high school student. One day, Onise Taiga asks her "would you like to date with me on the promise that we will get married?" Nao is unable to turn down his proposal because she is scared of him. Taiga has red hair and piercing eyes. His appearance gives off the impression that he is a bad boy, but he is actually considerate to others and good at cooking. After getting to know Taiga, Nao begins to have feelings for him.

Erika Shinohara is a first year of high school student. While talking to friends, she makes up a story about her "boyfriend." In reality, Erika Shinohara doesn't have a boyfriend. Erika's friends soon begin to doubt her story and Erika is also running out of lies. Erika then sees a pretty boy on the street and takes his picture discreetly. She later shows his picture to her friends as her boyfriend. The boy in the picture is Kyouya Sata and happens to attend the same school as Erika. She tells Kyouya about her situation and asks him to be her pretend boyfriend. Even though Kyouya has a pretty appearance, he has a dark side.

Hyasaka Yukari only wants one thing: to enter the college that her mom wants. One day, she meets an extravagant group that loves fashion. They were searching for a model and Yukari fits their ideal model. From now Yukari will know the world of fashion and modeling, and what she really wants.

In Fujisawa, Sakuta Azusagawa is in his second year of high school. Blissful days with his girlfriend and upperclassman, Mai Sakurajima, are interrupted by the appearance of his first crush, Shoko Makinohara.

Rihito Sajo, an honor student with a perfect score on the entrance exam and Hikaru Kusakabe, in a band and popular among girls, would have never crossed paths. Until one day they started talking at the practice for their school’s upcoming chorus festival. After school, the two meet regularly, as Hikaru helps Rihito to improve his singing skills. While they listen to each other’s voice and harmonize, their hearts start to beat together.

Mika is a fresh high school student who starts texting a mysterious boy. She is shocked when he reveals who he is - Hiro, a delinquent attending her school. What she doesn't know is that Hiro isn't as bad as he seems.

Yamada may be shy and rather clumsy, but the flower gardens at her school have always brought her happiness. Suddenly, a different sort of beauty catches her eye—the vivacious track star, Kase-san. Although the two girls don't seem to have much in common, they soon start a romance where each must learn an important lesson in tending their budding relationship. Can the two girls, so different from each other, learn how to make their first love blossom?

In middle school, Futaba Yoshioka was madly in love with Tanaka Kou but he moves away with his mother. She is reunited with him later in life but he is not the same person anymore.