In Different World with Naruto System (WN) - Chapter 37 Sage mode

The entire globe has transmigrated overnight!

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

It’s a trend to take your grandfather along with you when passing through to another world, but we have kind of been cheated—have you ever experienced buy one get eight free?

Hong Xiaobao: “This opponent is a bit formidable. All you old-timers, hurry up and save me please! If you don’t appear, then this prince is going to get angry!”

Demon Emperor Meng Xianji: “Mockers, kill! Those who defy me, kill! Strong people, eat! Valuable treasures and materials, eat! Good equipment, steal!”

Wine God Xiao Sanshao: “Why must you be so brutal? If there’s something wrong, can we not just all sit down and have a nice chat? I’ll teach you how to taste wine, youngster!”

Medicine Immortal Tian Can: “You guys chat first. My condition today isn’t very good, so I’ll go rest first…. If you want to concoct some medicine, tell me after I wake up….”

Godly Craftsman Xi Hong: “Didn’t I just upgrade your equipment yesterday? What are you afraid of? Attack, youngster! Isn’t that right, Chen Nan?”

Formation Spirit Chen Nan: “En…. How about you go ask Mao Yue.”

Beast Emperor Mao Yue: “Today’s sunshine is too bright. I’m recalling that cat of mine who died because of menstrual pain….”

Hong Xiaobao: “Can you guys not be so misleading?”

- Description from Novelupdates

Xia Lian, a 21st century military doctor died in an explosion and found herself transmigrated to the body a 12 year girl. Her mother died and her father abandoned her and her little brother for another woman.