I Opened a Restaurant in a Collapsed World

[Of all martial arts skills, this is culinary skill] [Can't a weapon used to kill be used to cut vegetables? Is cooking such an inconvenient thing?] [The reason I am the number one chef in the Honkai world is not because my cooking skills are the best, but because no one who cooks as well as I can fight, and no one who can fight as well as I can cook.] In short, this is a passionate (?) story of an invincible chef opening a restaurant in the Honkai world and fighting against the Honkai.