Adorable Allergen

Ever since his dad brought home an adorable mixed-race little boy when Song Yu was six, his life has been completely taken over by this clingy kid who can barely speak Chinese. Lele in kindergarten: “Brother Xiaoyu, my classmate said he has a pretty sister-in-law. What's a sister-in-law?” Song Yu: “Your brother's wife.” Lele: “No! I don't want a sister-in-law!” Song Yu: “...” Lele: “I'll be your sister-in-law!” (Something's not quite right here...) Song Yu: “Please study Chinese family relationships properly.” Lele: “No, no! I'll be my own sister-in-law!” Song Yu: “...” A sharp-tongued but soft-hearted, catlike older top x a sweet, straightforward mixed-race puppy-like bottom 1. Childhood friends, with an older top and a growing-up-together story. A gentle, everyday slice of life (with some ups and downs). Lots of eating scenes. If you prefer a fast pace, this may not be for you. 2. The bottom is in his third year of middle school when he appears. The leads are not related by blood or legally. He lives with the family, but they are not on the same household register. 3. The top spoils the bottom, and they are completely devoted to each other. At heart, it's a little-brother fanatic x big-brother fanatic. Please don't read if you dislike this pairing, or if you're an extreme fan of either role. 4. The bottom is cute, not a strong-willed type. Please don't read if that's not your preference. 5. There is a yuri side couple with a small role. Please don't read if that's not your preference. 6. Please don't read if you can't accept even a little conflict. There are ups and downs, there are ups and downs, there are ups and downs. This isn't pure fluff. 7. The one-line synopsis is based on a joke from Happy Camp with Zhang Yujian. Since Jinjiang doesn't allow the word “older brother,” I changed it to “childhood friend.” 8. Please don't make copycat adaptations or infringe on my work. 9. The setting and story are fictional. Please don't take them too seriously. The couple from [System for a Be-addicted Man's Survival] will appear a few times. The leads from my other stories won't make cameos. Theme: Love comes naturally