|Season||Seiya-chi no Starlight Uta|
|Anime Debut||Episode 01|
|Alter ego||Hoshizora Seiya-chi|
Mochitome Seiya is the 14-year-old main character of the magical idol series Seiya-chi no Starlight Uta. She is known as the girl that was thrown out of every existing club. However, Seiya is very optimistic and is determined to find the one thing she is expert in.
Seiya is the main character of the series, who is a cheerful but also clumsy young girl. She is a second year middle school student, who basically shows no talents at all. She is known as the girl that was thrown out of every existing club. However, Seiya is very optimistic and is determined to find the one thing she is expert in.
Seiya has short, brown hair tied in pig tails. The pig tails are held with pink pearls. She usually wears a pink t-shirt with a long-sleeved, white top underneath. She also wears a dark blue jeans skirt and dark red sneakers with white stockings. In her Mahouon Academy school uniform, she wears a silver blazer with a blue tie and a grey skirt. She also wears grey loafers and black stockings. The blazer also shows the school's emblem, which is a golden star with a light blue ribbon.
- Sakihana Amaya - Amaya is Seiya's best friend and future no.1 fan!
- Belle L'Amour - A graceful creature from the Sky Palace, who looks after Seiya.