Can anyone tell me how to get the 2nd cg in the gallery for Diego? I cant Find it. By the way Diego's route was very sweet. Congratulations to the creators! :D
The second CG in the gallery is actually Tais intro CG. This is unlocked by seeing it in day 3 (it was only added this month). Next month, it will be unlocked automatically if you've played past that point so don't stress too much about going back to unlock it.