A century-long love grows cold through misunderstandings: A childhood friend's descent into hell ~ If only I had confessed first, would anything have changed? ~

Warning: Bad ending. Ranked 7th in the Daily Real World [Romance] Rankings TOP 100 (as of 10/2 9:32). Thank you for your support. 【Synopsis】 Seiji confesses to his childhood friend Mutsuki, but is rejected because Mutsuki already has a boyfriend. That boyfriend had only been together with Mutsuki for three days. However, Mutsuki had always loved Seiji. The love between these two, who have been passing each other by, leads to a tragic ending as Mutsuki struggles to correct their misunderstanding……