Naoyuki Itô

Changing schools is something Yuuichi is accustomed to, due to his parent's profession, and with their recent venture to Africa, he is returning to his aunt's home after 7 years. The time that has passed since his last visit has faded his memories of the people he knew, and the ties that bonded them to him, including his cousin Nayuki. Slowly those people, coincidentally all being girls, find their way back to him. (myanimelist.net)

After Luffy fails to save his brother Ace, he begins training for 2 years with Rayleigh. A new foe named Byrnndi World emerges who wants revenge against the World Government. He threatens to kidnap the nearest Shichibukai to hold as hostage as he sails to take on the World Government. Luffy must overcome his failure to save Ace in order to defeat Byrnndi World. (AnimeNewsNetwork)

On their way to the hot springs, Hajime and his companions get lost in an abandoned village, where they discover a murder case involving vampires.

Kindaichi, Miyuki and Kenmochi arrive at the condemned opera house in the pouring rain and are met with an ominous announcement from its phantom.