Akame Ga Kill! Wiki
Note: Filler Events that happen in the anime only and does not constitute to the canon material.

After Bolic's assassination by Night Raid, the Emperor appears before the audience to witness the intended execution of Tatsumi, following his capture in a failed attempt to infiltrate the royal palace with Lubbock killed, made an impressive speech before allowing the execution by Esdeath to commence.

Later on, with the all-out revolt by the discontented masses and the Revolutionary Army, the Emperor was convinced by Honest that it's time to show the people why they should fear the ruler of the Empire as he presents the child Emperor the Shikoutazer, the "ultimate" Teigu. During the Revolutionary Army's siege, Night Raid had infiltrated the royal palace and entered the throne room with the Emperor, Honest and the late Great General Budo's Imperial Guard. Compelled to use the Shikoutazer, the Emperor unleashed it and caused a massive death toll and collateral damage throughout the Capital all for the sake of protecting the Empire, earning Tatsumi's anger for his blind and rash actions.

In the battle, Tatsumi tries to reason with the Emperor, but he is too selfish in power to listen and easily overwhelmed Tatsumi in spite of wielding Incursio, even with the aid of Wave, who finally saw the error of the Empire's ways and fought in defense of the people. The Emperor was eventually defeated after Tatsumi, in his evolved Incursio, destroyed the Shikoutazer, aiming for the weak spot, but later died when attempting to save the civilians from its falling form. The Emperor laments his defeat, asking if the Empire really lost.

In the aftermath of the Revolutionary Army's victory with Honest's death, the Emperor was put under custody and later sentenced to death by guillotine as punishment for his actions that would have brought the country that lasted over a thousand years into ruin. But before his death, the Emperor asks Najenda to help rebuild and watch over the nation while stating that he should not cry in front of the people upon facing death.