It's about a girl named Hikari Kamijou who dreams of becoming a national rhythmic gymnastics champion. Hikari no Densetsu is primarily a love story that it is set in the late 80s junior high school atmosphere. The plot revolves around four characters and how they work to achieve their dreams. Hikari Kamijou, a young, naïve, care-free, young woman who dreams of becoming an Olympic Champion in the sport of rhythmic gymnastics ever since she witnessed a performance of the young Diliana Georgieva (a champion Bulgarian rhythmic gymnast). And while she performs poorly and is not very confidant in her skills as a rhythmic gymnast, she is very passionate about the sport and shows occasional brilliance during her performances. From Wikipedia

Sixteen-year-old Serina Kurahashi, an ice-skater, meets Jin Himura after a long separation. They fall in love and skate together, aiming to win all the competitions.

Sunao Miyahara wants to enter the world of show-business. She starts modeling and, thanks to her naturalness and expressiveness, she manages to overcome her rivals.

Miki Takatsukasa is the haughty heiress of a wealthy family. She seems cool and detached, but is actually sweet and loves horses, especially her foal Chibi. Miki enrolls a riding school to become a professional jockey. The series got discontinued after the second volume.

(from ebookjapan): Even though it is a mock drill, Karen Saeki is not just a smart, tall, good-looking man who can defeat the criminal landscape with a single blow... but she is a full-fledged female detective. She uses her keen sense of observation and manly energy to hunt down the culprit. The next case is that of her twin brother, Tsubasa Shinozaki, a popular idol, who was found dead in Tokyo Bay. Trouble between close blood relatives, grudges, jealousy, and all manner of other problems lead Karen to the full extent of the case.

Four one-shots bound in two mini-series. The first miniseries, "Oshare na Suspense", revolves around Lady Forrester, a famous model simply known as Lady, who is actually a man. The second mini-series revolves around Leo, a pianist who deals with dangerous adventures.

Akira Tateno and Usagi Toda meet at school and fall in love, but they have to fight against destiny and tarots previsions.

Akiko "Ako" Ouji is the captain of the school judo team, while her neighbor, Yusuke Himekawa, is a former martial artist now fond on cooking. When some thugs threaten Ako and her judo team, Yusuke shows off his special skill: fighting while cooking.

Usagi and Akira fight against Saeko, a girl who is in love with Akira and wants to get rid of her rival.

During holidays, Jun meets Rou, good skier and known tennis player. The two fall in love, but at the end of the holidays they have to part. Jun starts writing him letters and playing tennis, while Rou, due to health problems, can't play anymore and becomes her coach. The story follows their sporting and sentimental vicissitudes. At the end of the volume, a one-shot titled "17 Fashion", who follows a basket player who falls in love with her favourite fashion designer.

Arimi is a high-school girl, editor of the school newspaper, while Midou is a bizarre boy who cares a lot about her and helps Arimi when in danger.

Keiki Takemoto, sixteen years old, is in love with Takumi Yoshikuni, rock singer and baseball player.