I think that day was 1 day before mikey's birthday and he wouldn't want to selebreit it because it would remind him of shin he would just cry all day in his bad 😢
Si te viste la serie completa y el manga tienes que saber que takemichi no logra salvar a nadie y baji muere y Mikey también. Y si no te la viste pus te di un espoiler de casi todo. >:>