“Subaru-chan… Subaru “Sister” be quiet!”

Subaru “Sister” “Ai…💦” The image is of Yui, the reincarnation of the battle maiden Svatogyuto, the eldest daughter of Yuna\'s biological daughter Subaru, and her cousin and best friend of the same age. By the way, her mother is Yukimi, the best friend of Subaru\'s mother Yuna and the sister of her father\'s strongest monster. Yui\'s birthday comes first, but for some reason she sometimes calls Subaru ``onee-chan\'\' and ``Subaru-nee\'\'. Judging from the color and design of the uniform, I guess he was a junior high school student (junior high school)? Subaru became quiet after this, perhaps because he was weak to being called a younger sister, or because he was called \"onee-chan\". Yui also got scolded for bringing too many books to her seat and for bringing in books and materials from outside the library.