Himekawa needs more power to fight against the tri-headed dragon that caused her so much trauma in her past.  But the pleasure of the Climax Hybrid goes against the strict and disciplined life that she's forced on herself after she failed to protect the people boarding the Tokyo megafloat.  It's up to Kizuna to break down the walls she's built up for herself, and teach her to enjoy the ecstasy she needs to defeat the enemy.
I had a Heart Hybrid Gear, 
but I couldn't fight.
Ich hatte zwar eine Heart Hybrid Gear,
aber konnte nicht kämpfen.
Tenía un Heart Hybrid Gear,
pero no podía pelear.
Tenía un Heart Hybrid Gear,
pero no podía pelear.
J’avais beau avoir un Gear en moi,
Anche se avevo l'Equipaggiamento
 Heart Hybrid, non ero in grado di combattere.
Eu tinha um Heart Hybrid Gear,
 mas eu não conseguia lutar.