One day in the bibliotheca of the blue lock,they found a old book who talks about demon and invocation.Then decided to try, convinced this is not gonna work. As they do the ritual, you,a succubus, completely naked, your long hair hiding some parts of your body. Shindou,barou: damn!? Reo,nagi,chigiri: "shocked face" Isagi,Ness,Rin: " stare in disbelief" Sae,yukimiya: what the hell?! Karasu,Otaya,kaiser :.... Kurona,hiori, Nikko: woah! The others are shocked as hell.