To defend against Nightfly O'Notes, invaders from another world, mankind has organized the five-man fighting team "Scar-red Rider XechS." However, one of the Riders, Yosuke, is saddled with a serious problem.
On the other hand, who exactly
is that cute girl that he rescued?
ومن ناحية أخرى، من هي بالضبط تلك 
الفتاة اللطيفة التي أنقذها؟