Transmigrating into Genshin Impact: How Did It Turn into the Myriad Worlds?

Transmigrating through the heavens, from Genshin Impact to Honkai: Star Rail to ??? I'm a native Chrysos Heir, studying at the First Academy for Chrysos Heirs. In the morning, my adorable adoptive younger sister, Tining, climbs onto the edge of my bed and sweetly wakes me up, asking me to eat the breakfast she made herself. When I head out, my adorable childhood friend and classmate Feng Jin is waiting to walk to school with me. The new transfer student, the young lady Xiadie, is my desk mate. She likes passing me little notes in class. After class, the tsundere disciplinary committee member, Tiyan, blushes and asks me to crouch down so she can straighten my tie. The petite health sciences teacher, Tibo, gives me a mischievous grin and asks about my love life. She especially likes rubbing my face with her foot. Sometimes, the principal, Ms. Aglaea, calls me to her office for one-on-one tutoring, and sometimes she asks me to help replenish her humanity. The mischievous student council president, my upperclassman Cipher, approaches me with a smile, supposedly to conduct an inspection, then gets jealous and competes for my attention with my childhood friend and classmate Feng Jin. After school, my adorable junior, Xilian, waits for me, beaming as she calls me Senior and asks me to help her with her studies. On my way home, I happen to run into the older beauty Hysilens. She suddenly wraps her arms around me and refuses to let go, then takes me to ask Queen Cerydra for permission to marry. As it turns out, Queen Cerydra has her eye on me too. The two of them start fighting over me, and I sneak away to get home. That night, I walk in on my adoptive younger sister Tining getting dressed in the bathroom while I'm taking a shower. Later, my older sister Xing, drunk after work, climbs into my bed, hugs me, and says she can't find a husband, so she wants to spend the rest of her life with me. Could all of this just be my imagination?