Shut Up and Call Me Mom

Sen Lan Zi thought the world had become utterly surreal. She'd just finished chatting with her son, her student, her best friend and her friend's child, along with a cat. Then she turned around and found herself in a strange open space. Then she saw someone who seemed strangely familiar calling her Mom and hugging her. There was also a silver-haired person who seemed just as familiar, calling her Teacher with the same excited expression. And a cat jumped onto her head. With Mori Ogai in her arms, one hand patting his back and the other patting Fukuzawa Yukichi on the head, and a cat perched on her head, Lan Zi felt like the world had turned surreal. Lan: "...Huh?" The Armed Detective Agency and the Port Mafia were equally bewildered. They'd been about to fight, but a cloud of smoke got in the way. When it cleared, they saw a girl who looked about eighteen. Before they could recover, their own or enemy boss ran straight over, hugged her, and called her Mom???? Just as the Agency was about to mock them, their own president ran over too and called her Teacher. Agency/Port Mafia: We were instantly panicked and confused... What on earth was going on? If you ask her how it feels to end up N years in the future, Mori Lan Zi would tell you she doesn't feel anything. She just wants to go catch up with her best friend. Mama Nana: Welcome!!! Mori: "...Mom, don't you want me anymore?" Fukuzawa: "..." (silence) Things to know before reading: 1. The setting has been heavily altered. OOC characters ahead. 2. No CP. If there is one, it's with the late Mori. 3. Mom is strong. What can I say? Who doesn't love a big sister who's cute but also cool and badass? Theme: Great maternal love.