Ore wa Subete wo [Parry] Suru: Gyaku Kanchigai no Sekai Saikyou wa Boukensha ni Naritai

I Parry a Cow

I Parry a Reward

I Parry Taking on a Page

I Parry a Goblin

I Parry a Frog

I Parry Deadly Poison

The boy, who has been abused all his life just for being born a Demonfolk, was offered freedom if he used his abilities to attack the Kingdom. Having lost control of the dragon he cannot understand why Noor is protecting him. Despite being poisoned himself Noor uses healing magic on the boy. It is shown via flashback that Noor accidentally poisoned himself as a boy and then did it repeatedly as he realised he gained a tolerance to poisons. With the poison neutralized he traps the dragons mouth shut with his next parry and the pressure of the trapped poison gas causes the dragon to explode. The boy tries to admit bringing the dragon there for war but Noor, with his habit of eating poisonous animals, believes the boy was taking the "frog" to the Kingdom to sell as meat and is impressed by his Demonfolk abilities which he is certain would be of great value to the Kingdom. Lynne doesn’t trust the boy until Ines points out the clear evidence he was raised a slave to be used as a child soldier. Lynne insists on taking the boy, Rolo, with them even though Demonfolk are forbidden from entering the Mithra Theocracy. At that moment a strange man appears. (Source: Wikipedia)