Todoku Hazu no Nai Tegami

Given the timing, they were worried about fitting in at the new school. However, with the help of the class president, "Morisato Konoha," who looked after them in various ways, and her gentle best friend, "Nagise Tsumugi," they built friendly relationships and began to lead a smooth school life.
But after encountering the shrine maiden "Mido Yui," who started picking on them, harsh realities gradually came to light…