The 2016 Berserk anime series is based on the manga series of the same name by Kentaro Miura.
For season one, the opening is "Inferno" by 9mm Parabellum Bullet while the ending is "Meimoku no Kanata" (瞑目の彼方, lit.
"Beyond Closed Eyes") by Nagi Yanagi.
For season two, the opening is "Sacrifice", by 9mm Parabellum Bullet, while the ending theme is "Issai wa Monogatari" (一切は物語, lit.
"Everything is the Story") by Yoshino Nanjō ft. Nagi Yanagi.