How to Save the World While Wearing a Secret Identity

Kong Xin is bound to a System that claims to come from a distant land. Both of them want to get home, so they hit it off right away.

So one day, someone knocks on the detective agency's door. A blonde girl stands outside holding a box. "Excuse me, is Mr. Dazai here? I'm Yoimiya from Naganohara Fireworks. A red-haired middle-aged man asked me to come and make you some custom fireworks."

One morning, Gojo Satoru, intent on slaughtering the jujutsu world after being betrayed by his best friend, encounters a girl dressed all in black outside Jujutsu High. She's there to drum up business. "Wangsheng Funeral Parlor is having a grand opening sale! Buy one, get one free. The second tombstone is half price!"

A tea-blond boy is being chased by monsters on his way home from school when he spots a girl wearing a big hat. After a chaotic series of events, the girl, who has fainted from hunger, slowly wakes up. "My name is Astrologist Mona Megistus. I'm a great astrologist, so if you want my help, you'd better remember my name!"

Theme: Going home is the best gift.