Hiroto's investigation finally leads him to uncover Dr. Korogi's secret. What will this mean for Hina and Yota?
Thanks for always being there, Gramps.
Danke für alles, Opa.
Gracias por acompañarme siempre, Abuelito.
Merci pour tout, papy.
Obrigado por sempre
estar comigo, vovô.