"I did this on purpose, sorry I didn't tell you beforehand. I was afraid that there were unknown eavesdroppers. There was no time to check all the planes one by one. From the start their attack was read. You are here as part of the plan. so that my arrival gives the impression that we are really in their plans," said Elisio explaining it to Ryou.
Ryou understood, but what made him still unable to accept Elisio's explanation was about his decision. Giving no signs at all would trap him in such a situation.
Elisio can be said to be crazy, he is reckless, and also full of sharp intuition. It was not wrong if Alyosha felt calm if Elisio interfered in the affairs of the enemy's attack.
Elisio doesn't always come along, he's also sometimes busy with his own company.