青草 ナツ

Birth year: 1990 Main character of "Story 3 - Crimson hair" Natsu is the daughter of Tsubame's mother's friend. Her family owns a villa at the beach where Tsubame and You pay a visit in the last few days of their summer holiday. Natsu is a second-year high school student. She has a shy personality, more or less of a hikikomori. As the story progresses, she gradually opens up to Tsubame and You when she gets to know more about them.