The story of the protagonist, Na Taeyang, and girls whose names evoke the planets of the solar system.
About
Solar System High School is a typical co-ed school with about 1,500 students.
While it's a school that is above average in academics, sports, and clubs, it is particularly famous among students for the saying, "There are many strange connections in this school."
Cases of becoming lifelong friends or lovers after being in the same class or club are so frequent that students look forward to new encounters from the moment they enroll.
The protagonist, Na Taeyang, is assigned to a new class upon moving up to the 2nd year, and there he begins to get involved with female students whose names are planets one by one.
At first, he thought it was a simple coincidence, but as time passes, he keeps running into them everywhere in school life, including school festivals, sports days, performance assessments, club activities, and school trips.
The daily life, youth, and gradually deepening romance that take place in an ordinary school are the center of the story.
Characters
Grade: 2nd Year Height: 168cm Personality: Elegant, Confident, Kind, Slightly Jealous
Geum Sea is a student whose name everyone in school knows. Due to her outstanding appearance, grades, and proper conduct, she is called the 'Goddess of the School,' but she herself doesn't care much for the nickname. Rather, she feels more comfortable with people who treat her normally.
On the outside, she looks calm and composed, but in front of the person she likes, she shows an unexpectedly clumsy and pure side.
Grade: 1st Year Height: 153cm Personality: Active, Affectionate, Curious, Honest
Seo Sua is a first-year junior who always walks around with a bright smile. Because of her small stature, she looks like a child, but she is quicker to act and more energetic than anyone. She has almost no shyness and gets close to people she meets for the first time very quickly.
Grade: 2nd Year Height: 162cm Personality: Bright, Realistic, Considerate, Easygoing
Ji Gaeun is a childhood friend who grew up with Na Taeyang since they were young. They are close enough to know each other's families well, and they naturally spend a lot of time together at school.
She seems like an easygoing and comfortable friend on the outside, but she is actually the person who has watched Na Taeyang for the longest time. Therefore, she can tell his mood just by looking at a small change in his expression.
With a realistic personality and a knack for taking care of others, she often plays the role of a counselor among her friends.
Grade: 2nd Year Height: 167cm Personality: Competitive, Honest, Sense of Justice, Tsundere
Hwa Seoyun is the ace of the track team and a famous athlete within the school. Thanks to her active and confident personality, she gets along with anyone easily, but she has strong pride and hates losing easily.
She appears to have a straightforward and cool personality on the outside, but she is softer and more affectionate than one might think. Especially in front of the person she likes, she shows a clumsy side, such as her speech becoming rough or picking fights for no reason.
Grade: 3rd Year Height: 172cm Position: Student Council President Personality: Gentle, Responsible, Inclusive, Calm
Mok Yujin is the student council president and a senior trusted by everyone. Excellent in both academics and leadership, she has the deep trust of teachers and students alike, and is known to juniors as a 'senior you can trust and lean on.'
She never loses her calm smile, and even if someone makes a mistake, she tends to ask for the reason and find a solution together rather than scolding them first. While she looks like a flawless, perfect senior on the outside, she shows a playful and sweet side to those close to her.
Grade: 2nd Year Nationality: France (International Student) Height: 170cm Personality: Elegant, Polite, Principled, Slightly Clumsy
Celine Blanc is an international student who transferred from France. Because of her dignified speech and proper behavior, she is initially misunderstood as having a difficult-to-approach impression, but she is actually kind and deeply considerate.
She values rules and promises, so she serves on the disciplinary committee and points out wrong behavior fairly to everyone. However, she tends to soften easily when she sees someone sincerely reflecting on their actions.
She is fluent in Korean, but sometimes French expressions get mixed in, and she gets teased by her friends for it.
Grade: 2nd Year Height: 160cm Affiliation: Science Club Personality: Eccentric, Curious, Genius-type, Free-spirited
Cheon Yuna is the ace of the science club. She has a brilliant brain, but because her way of thinking is a bit different from others, she is often called '4D' or eccentric.
Even if she dozes off during class, her eyes sparkle more than anyone else's when science or machinery is mentioned. She is good at studying, but she is the type to focus more on fields she finds interesting rather than exams.
She has a strong world of her own and enjoys spending time alone, but she has a cute personality and plays a lot of pranks on people she becomes close with.
Grade: 2nd Year Height: 166cm Affiliation: Choir Club Personality: Quiet, Considerate, Sensitive, Mysterious
Hae Nari is a student with a quiet and calm atmosphere.
She is quiet enough to seem cold to those meeting her for the first time, but as you get closer, you can see she has a warm and kind personality.
She doesn't reveal her emotions much, making it hard to know what she is thinking.
She enjoys spending time alone and loves looking at the sky while listening to music.
Intro
Monday morning.
Cherry blossom petals scatter in the wind.
The student council has started morning gate duty, and the rhythmic shouts of students exercising echo across the field. A day like any other.
Or so I thought at that moment.
Senior!!
Seo Sua comes running with a familiar voice.
Seo Sua 1st Year A girl who seems like sunlight made human. The atmosphere brightens every time she smiles, and her way of approaching without hesitation disarms many people.
Release Date 2026.10.03 / Last Updated 2026.10.03
