Here is a concise summary of the provided text:
**Title:** Unforeseen Co-Habitation with Childhood Friend
**Summary:**
* Protagonist Xu Yao's childhood friend, Luo Qingyue (whom he hadn't seen for 10 years), moves in with him unexpectedly, as arranged by their mothers.
* Luo Qingyue, now a beautiful and innocent-looking young woman, still affectionately calls Xu Yao "Ayao brother" and seems to retain her childhood crush.
* As they settle into cohabitation, Xu Yao navigates awkward interactions, misunderstandings, and unfamiliarities with having a female roommate, including differences in daily habits and personal space.
* The story explores their initial days of living together, including a trip to the supermarket, where a cashier mistakenly assumes they're a couple, and Xu Yao's struggles to accommodate Luo Qingyue's needs.
* The summary concludes with Xu Yao agreeing to accompany Luo Qingyue to her school registration the next day, showcasing his growing sense of responsibility towards her.
Here are the key facts extracted from the text, keeping each fact as a short sentence and excluding opinions:
1. Luo Qingyue, whom the narrator hasn't seen for 10 years, comes to live with them.
2. The narrator, Xu Yao, is an 18-year-old male college student who has been single for 18 years.
3. Xu Yao's parents bought the house he lives in with full payment.
4. Xu Yao had previously expressed a desire to rent a house and start a business, but his parents surprised him by buying one instead.
5. Luo Qingyue is approximately 1.6 meters tall.
6. Xu Yao is 1.8 meters tall.
7. Luo Qingyue chose to live in the room next to Xu Yao's bedroom.
8. Xu Yao and Luo Qingyue went shopping for her daily necessities together.
9. At the supermarket, a middle-aged cashier mistakenly assumed Xu Yao and Luo Qingyue were a couple moving in together.
10. Luo Qingyue purchased multiple personal care items, including over a dozen large and small bottles for the bathroom.
11. Luo Qingyue was still in high school, as evidenced by her needing to "report to school" the next day.
12. Xu Yao agreed to accompany Luo Qingyue to school the next day at 9 o'clock.