Sine Cosine Love Sign

Grand Blue Dreaming

Iori Kitahara begins his freshman year at Izu University and moves into his uncle's scuba diving shop, Grand Blue, in a seaside town. After an all-boys high school, he dreams of a fresh start full of beautiful girls and good friends. Instead, he is greeted by a rowdy group of naked upperclassmen who drag him into their alcohol-fueled antics. His cousin Chisa Kotegawa catches him at the worst possible moment, earning her scorn. Iori still wants his ideal college life, but the diving club's parties keep pulling him under.

Blue Box

Taiki Inomata is a junior high student at Eimei Academy, a school known for its strong sports program. He is a member of the badminton team and arrives early every morning to practice in the gym. No matter how early he gets there, he is always second. The person already training is Chinatsu Kano, a first-year high school student and the rising star of the girls' basketball team. Taiki has a crush on her, but the gap between them feels enormous. One day, an unexpected turn of events brings Chinatsu to live at Taiki's house. Suddenly, the girl he admires from afar is sharing his daily life. Determined to become someone worthy of her, Taiki sets his sights on reaching the Nationals in badminto

Wind Breaker

Jo Ja-Hyun, known as Jay, is the model student at Taeyang High. He earns top grades and serves as student body president, dedicating himself entirely to his studies. This leaves him with little time for friends or hobbies, as he feels the weight of expectations pushing him to succeed academically. His carefully controlled world is disrupted when his classmate Yoon Minu sees him riding his bike with incredible skill. Amazed by Jay's natural talent, Minu is determined to recruit him for his biking crew, the Hummingbird Crew. Jay coldly refuses, but Minu won't give up easily. He challenges Jay to a race, promising to leave him alone if Jay wins. This challenge pulls Jay into the exhilarating a

Cheeky Brat

Yuki Machida has always put others first. As the eldest of a large family, she learned early to swallow her own feelings and carry responsibilities that were never really hers. Now in high school, she manages the basketball club, a role she took on for one simple reason: she has feelings for the team captain. Her carefully controlled routine shatters when Shou Naruse joins the team. Talented, relentless, and fully aware of his own charm, he sees straight through Yuki's cold exterior and decides he wants her. From sudden kisses to shameless requests, he pushes every boundary she has, turning her quiet days into a constant battle between irritation and a growing, unwanted attraction. As the

Chihayafuru

Chihaya Ayase is a sixth grader with no clear dream of her own, always seen as inferior to her older sister. Her life changes when she meets Arata Wataya, a quiet transfer student from Fukui who plays competitive karuta, a traditional Japanese card game based on the Ogura Hyakunin Isshu. Chihaya is fascinated by his speed, his focus, and his deep love for the game. Arata, in turn, is drawn to Chihaya's natural talent and potential. Along with their classmate Taichi Mashima, a gifted but insecure boy pushed by his strict mother, the three friends spend their childhood practicing karuta together. Their shared passion is cut short when circumstances force them apart. Years later, now in high

Air Gear

Minami "Ikki" Itsuki is the toughest kid at Higashi Junior High School and the leader of the East Side Gunz. Known as the "Unbeatable Babyface," he lives with the mysterious Noyamano sisters, who secretly belong to a Storm Rider team called Sleeping Forest. After a humiliating defeat at the hands of the Skull Saders, a rival street gang, Ikki discovers the sisters' hidden world of Air Treks—motorized inline skates that allow their riders to perform incredible, gravity-defying feats. Determined to regain his pride and experience the sensation of flight, he throws himself into the dangerous and thrilling world of Air Trek.