The Invincible Life of Kasugano Yu

My name is Kasugano Yu, I have a lovely and capable younger sister, and a traveler of the comprehensive world.With three decks in hand: FGO, Ultraman, Unknown deck, and an extra deck of Kamen Rider, I felt like I was invincible, but I was still panicking.It looks like a good future is not bad...but...The sick girl Gui Yanye, the flat-chested senpai Kuroyukihime, the artificial angel Icarus, the waste angel Gabriel... and that huge monster... Who can tell me what's going on?……PS: Upload a new book, ask for a recommendation ticket, ask for a collection, ask for a monthly pass! ! !I love you! ! ! (*?▽?*)