Hopefully that's Rirkia's real hair color because that works much better.
Well, there's Hiroto's win condition: finding out and capturing the new student who has the power to counter Hiroto's stepsister. If that new student has a piercing/ ability nullifying power that can shut down the stepsister's auto reflect or all her powers in general, Hiroto can get the W.
I figured once Hiroto captured the Prince, he will focus his attention on dismantling the student council members. If he captures Mayu at the minimum, Hiroto will be aware of the conspiracy behind the scenes.
Hopefully, the author will wrap up the subplot dealing with Rirkia fast so Hiroto can resume his counterattack. At least dealing with the kidnappers will give Hiroto the chance to practice his new powers before challenging Yuu.
Thanks for the update, Heat.