Kono Sekai wa Boku to Kimi wo Tsunagu

On the day of their high school graduation, Haruki finally gathers the courage to confess his romantic feelings to Renta, his lifelong childhood friend. This long-awaited milestone marks the beginning of a deeply cherished relationship, as the two young men officially transition from friends to lovers. However, their newfound happiness is abruptly shattered on the journey home, when a sudden and tragic accident alters the course of their lives forever. In the wake of the disaster, Renta materializes before Haruki not as a living person, but as a spirit. Bound by a steadfast devotion and whispering the poignant vow to always remain by Haruki's side, Renta's ghostly presence bridges the fragile boundary between the living and the dead. This bittersweet reality plunges Haruki into a profound emotional conflict, as he must navigate a surreal existence where the very day his beloved childhood friend finally became his lover was also the exact day he became a ghost.