Synopsis

Yuki and Yuno found themselves in an unlikely alliance with Detective Keigo Kurusu, the fourth diary holder. He proposed a day at the amusement park, a calculated move to lure the elusive ninth diary holder, who had repeatedly evaded him and his detective diary. As the day wore on, Yuki uncovered a disturbing truth about Yuno. The circumstances surrounding the ninth's actions suggested a possible trap, orchestrated by someone other than Kurusu himself.