I looked up Mr. Evan call He’s the same age as me and a real anime otaku.
I also looked up Berkeley and found that Mr Fujiwara from Bump of Chicken came from there.
My prediction. Evan is definitely playing Koei’s Nobunaga’s Ambition, Sangoku Musou or Sengoku Musou. Because the director of this Taiga, Mr. Mitani, asked Koei’s producer, Mr. Ko Shibusawa, to do the castle modeling and strategy simulation for the last Sanadamaru.