Time Travel Love Game and I Became a Useless Supporting Actor

When I woke up, I traveled to the world of the beautiful girl love game Gods and Demons★Explorers. Good news: the world is wonderful and girls are cute. Bad news: I am not the protagonist, but the one whose parents are dead, unable to pay for school fees, whose house is about to be demolished, and who is destined to be single for the rest of his life and serve as a human shield for the original protagonist - cannon fodder on the background! This cannon fodder script, I don't act according to the routine! Abandon the long range and fight at close range! Use the scarf as a weapon, and develop the "Four Sword Style" and "Eight Doors Hegemony" at the beginning! Release magic for scraping? Then hit him directly in the face! Just when I was about to use my fists to change my destiny, the plot went completely wrong—— The top powerful and beautiful principal directly went through the formalities and became my legal guardian? ! The elf princess and the beautiful guard who were saved casually moved into my house without saying a word, clamoring to "escape danger together" with me? ! Bingshan's arrogant step-sister knocked on the door late at night to ask for magic advice. Even the "Water Dragon Queen" dragged me to practice under the waterfall every day... I looked at the room full of beautiful beauties and fell into deep thought: "We agreed to use the backdrop as cannon fodder, but why did everyone stick it towards me?!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.