My New Life Has Began

Everything change when Kidou, Endou and Gouenji were watching the sunset, till the mystery girl appeared! Seem like she holding a big secret that could bring Raimon new experience, that no one would ever expected that could ever happen to them! Especially Gouenji, who never thought he would be the main role of this huge chaos! Just what is the girl holding the secret inside of her? [set after episode 17]