[Comprehensive] I Rely on My Iron-Breaking Vest to Save the World

"The text is in third person, the following is the copy~" My name is Qi Mu Yuzhen, the third eldest son of the Qi Mu family, and a time traveler. My eldest brother Saiki Kusuke is a genius scientist with an IQ of 218. My second brother Saiki Kusuo is a person with super powers. Without the high IQ of my eldest brother, nor the superpowers of my second brother, I thought I could live my whole life as an ordinary person, until a system calling itself "Hengkai" came to my door and informed me that the world was about to be destroyed, and the system chose me to save the world. Excuse me? Save the world, me? So under the coercion (x) and assistance (√) of the system, I started to live an ordinary life of saving the world by relying on my full-life graduation pension account with the all-illustrated book that I was very passionate about in my previous life. Some college Bai E: Su Nuo, I'm here to bring you braised noodles! An organization Blade: There are five people, three fake wines... Some·Hong Kong·Black Placer Gold: Dedicate everything to the leader! Tips before reading: 1. Drive like crazy and walk like crazy. 2. To sum up, the main disasters and others are interspersed with each other. Purpose: World peace