The invincible sister helped her brother choose a sister-in-law, but she didn't expect to worry about them for decades. The elder brother always fights against the enemy at every turn, and the fool always sacrifices himself for others, burning himself to illuminate others. Nothing makes my sister worry. Fortunately, my sister is a mortal fairy and is invincible in the world. With just one move of his hand, he has the power to destroy the world. I chose the wrong label for the work. It should be something boys would like to watch, after all, they often fight. Originally I thought I would write about falling in love, but then I realized that I had never been in love and didn't know how to write about it.
