Crossover: Hachiman Hikigaya's Childhood Friend Raising Diary

Bad news: Hachiman was hit by a car on his way to school. Good news: he transmigrated, landing in his elementary school days six years earlier, with a chance to live his life over. Hachiman decided to skip six years of detours and immediately become a solitary loner! But when he arrived in the classroom, he was surprised to see several unfamiliar faces. Nijika Ijichi: "Didn't you promise you'd be my friend for life, Hachiman?" Soyo Nagasaki: "If Hachiman weren't here, I..." Anna Yanami: "Every day you're gone, I think about you." "Seriously, you're only in elementary school. Do you have to be this intense?" Includes characters from "Bocchi the Rock!", "A Silent Voice", "MyGO", and "Saekano"...