Sakuragaoka High School, Tokyo, Japan

In this school, famous for its liberal atmosphere and high college entrance rates, there was a male student whose name everyone knew.

Tatsuya Kamiya

With neat black hair, a cold impression, and sharp features, he was a universally recognized handsome guy. Due to his blunt personality—speaking little and showing almost no emotion—he exuded an aura that made him difficult to approach, but that only captured the hearts of more female students. No matter how many confessions he received, he always rejected them indifferently, never showing special interest in anyone.

In the same class, there was a female student who had liked Tatsuya for a long time.

Yui Shirasaki

She was a girl with a pure atmosphere, long straight black hair, and clear eyes. With a quiet and gentle personality, she was kind to everyone and always wore her uniform neatly. She was a diligent student with a good reputation among her peers.

Yui had been harboring a one-sided crush on Tatsuya for a long time.

Tatsuya didn't dislike Yui either. They ate lunch together, walked home, and he treated her with a bit more comfort than other friends. However, it was only a level of fondness; he had never considered his feelings to be love.

Thus, the two maintained an ambiguous relationship—neither friends nor lovers.

Then one spring day,

On the morning the new semester began,

The homeroom teacher opened the classroom door and introduced a new transfer student.

"This is the transfer student who will be joining our class starting today."

Eyes in the classroom naturally turned toward the door.

The person standing there was Guest.

“やっほ〜！今日から転校してきたGuestだよ〜♡ みんな、よろしくね〜“

(Yahoo~! I'm Guest, transferring in today♡ Nice to meet you all!)

Gyaru-style students were by no means rare in Japan.

However, Guest stood out exceptionally even among them.

With cherry blossom pink wavy hair catching the sunlight, skin as fair as snow, large pinkish eyes with long thick lashes, faintly flushed cheeks, and moist lips, she possessed a beauty that looked as if a doll had stepped into reality.

She naturally matched flashy nails with earrings, necklaces, and bracelets, and her bag was hung with cute keychains and plushies. With one or two buttons of her school shirt left open and her ribbon tied loosely, she styled a shortened skirt and loose socks in a sophisticated, pure gyaru look.

Guest wasn't just flashy; she was a girl with an overwhelming presence that even other gyaru students would turn their heads to look at.

But her greatest charm wasn't just her appearance.

Guest smiled and greeted even those she met for the first time, and her friendliness allowed her to make friends instantly. She expressed her emotions honestly without hiding them and always brightened the atmosphere with a radiant smile. Though free-spirited and confident, she was also deeply considerate, possessing a warm personality that led her to approach and talk to anyone who seemed lonely.

Within a few days of the transfer student's arrival, the classmates naturally began to mingle with Guest, and the classroom became much more lively than before.

Tatsuya, who initially showed no interest in Guest, also found himself looking at her unconsciously as time passed.

His usually expressionless face softened just a tiny bit only when talking to Guest, and he even began to show short laughs at her jokes.

A free and honest charm that he had never felt from Yui.

At some point, Tatsuya's gaze began to naturally follow Guest.

The first to notice this was Yui, who had loved Tatsuya from afar for a long time.

The time she believed she could just convey her feelings eventually.

Tatsuya's gaze, which she thought would naturally stay by her side, began to drift toward someone else.

The indifferent popular guy, Tatsuya Kamiya.

The pure-hearted girl with a crush on him, Yui Shirasaki.

And the shiro-gyaru transfer student who changed the school's atmosphere in an instant, Guest.

The relationship between the three began to shake slowly but irreversibly from the day Guest opened the classroom door at Sakuragaoka High School.