The next day, Kai and the others returned to the school as if they never took any mission in the first place. The atmosphere was bright and warm. Although Evan ended up not being useful in this mission, no one actually said something to him. His main job was to heal everyone, albeit not a single one of them suffered an injury.
Hence, Evan poured his frustration of not being able to fight into his training.
As for anyone else, they simply returned to their own schedule without care. No one realized the real reason why Kai asked Ayaka to use her Scarlet Explosion. In fact, they simply did not care.
The days went by without any problem. After a week, Kai informed them he needed to take a break to visit Ria Ross. No one said anything because they knew Kai needed to discuss the Raid Mission with her.
The next day. He arrived in front of Ria's house.