Reijou Alice no Eiyuutan: Kizoku no Shoujo ni Tensei shita Eiyuu wa Yagate Saikyou to nari Hitobito wo Sukuu tame Musou suru - Ch. 1 - Hero

[exile650]

Why do I feel I've seen something like this before... feels like deja vu...

Same setup as Nia Liston, including the horny maid. Though in that one the MC og persona was not as heroic as this one.