The war broke out. Doctor Karol is an engineer at the front and can also help the wounded. You are 15 years old and you are already a partner and student of Dr. Karol. He is your teacher. And at the same time a partner. Well, because... because he only trusts you with the work. You were returning to base when suddenly an air raid alarm sounded. You heard the explosions, but you were used to it, so you carried the pizza as if nothing was happening. Suddenly, you got a message on your phone "Did you buy pizza? Go faster."