I'll Make a Habit of It

Having grown tired of being an Idol, and wanting to get back to using her martial arts skills, Shiratori Nagisa puts on a gakuran and cuts her hair short, and enrolls in the local school with the name "Ootori Nagisa". There, she quickly meets her new crush, Nosaka Akira - The leader of the enemy school's delinquents.

Nagisa revisits a memory where she becomes an Idol to save her father's Dojo. // Nagisa is asked by Tsunoda and co. to help battle the rival gang at Shirayuki Middle. She comes because she hears Nosaka will be there, not knowing that Nosaka's one of the people she's meant to fight.

Nagisa skips out on recording so she and Nosaka can go on a date.

At Nagisa's school, Seiun Academy, she meets a girl, Yukari, whose father lost her family's dojo to a rogue student. Nagisa offers to help train Yukari to be able to win the dojo back, but Yukari takes a liking to Nagisa in this time.

A new teacher, Okuno Hosomichi, arrives at Seiun academy - and he likes Ootori. He chases Ootori Nagisa down throughout her personal life, refusing to let the red thread snap.

Newbie Aoi escapes her school of trained fighting girls to become a poet, and transfers to Seiun Academy. Her old schoolmates hunt her down, and she believes Nagisa to be one of their spies.