Naofumi and Raphtalia have been gaining XP since the mining incident. In preparation for the Wave of Catastrophe, Naofumi has upgraded his legendary shield and acquired new skills and armour. As fast as Raphtalia levels up, she also grew quickly into a beautiful young woman.
One day, they went to the Cathedral to learn from the hourglass the remaining time before the upcoming wave. They met the three other heroes and started belittling Naofumi. When Raphtalia asked why they were rude to him, Naofumi refused to answer.
The following day, the four heroes were summoned near the Lute Village were the Wave of Catastrophe has spawned. The other three heroes only rush towards the main boss, while Naofumi and Raphtalia chose to help the villagers instead. The other three heroes took pride in killing the main boss while the villagers thank Naofumi for saving them.