Marry
After listening to the people who invited him, Theo saved all their offers while remembering why Radvils said this might take two days. The number was too much for him to handle. If not because of Radvils managing his schedule, he doubted he could finish it even within three days.
During the night, Theo trained together with Nella. This training continued even after his schedule was free.
Ellen and the others asked him if he wanted to stroll around the city, but Theo decided not to spend his day leisurely and focus on his training. He only had a few months left before the Griffith Family came to him.
Obviously, Nella had a good time with Theo, discussing Control from Theo's point of view.
After Nella taught him, Theo could understand the concept and gradually replicate it.