Kotone Montagne is a French-Japanese second-year student and a figure skater. Once a world-class figure skater, she fell into a slump and stopped skating competitively after a slew of injuries and harsh evaluations. A cognitive manifestation of Kotone as a phantom idol under the codename Mont was created by Merope from Nagisa Kamishiro’s cognition. After Tomoko's Synergy Link, Kotone regains her motivation to skate. On her first day back, she wants to skate with love, but has trouble understanding love and seeks out the protagonist for help.

Voice Description: Medium female vocal range. Polite and respectful, but prone to emotion, very considerate of her own feelings. A celebrity, but she doesn't let the fame get to her head, preferring the quiet life.