The Melody of Oblivion
Season 1, Episode 19: The War of the 20th Century
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The kidnapped prime minister is interrogated by the Armed Theatrical Group. The prime minister reveals his intended deal with the Monster Union. He also mentions about his lost daughter. The origin of the new Monster King is also revealed.
All Episodes - Season 1
Episode 1
Meros Warrior
Episode 2
The Beginning of a Long School Break
Episode 3
White Night Cape
Episode 4
Monster Union
Episode 5
The Voice Reaching Out to You
Episode 6
Pyramid Scheme Valley
Episode 7
Meigen
Episode 8
The Fated Road Afar
Episode 9
Apeman Turn
Episode 10
Unicorn Series
Episode 11
A Song You Still Don't Know About
Episode 12
Maze Island
Episode 13
Kurofune
Episode 14
The Entrance called the Exit
Episode 15
Fortune River
Episode 16
Sayoko
Episode 17
Having wings even though one is not an angel
Episode 18
Tokyo Station
Episode 19
The War of the 20th Century
Episode 20
The Sun Is Calling Out To You
Episode 21
Area out of Range
Episode 22
Mithranome
Episode 23
Like an Arrow that Pierced Through the World
Episode 24
And yet, the dawn of you who begins a journey