A cute volume.

Sayu gets a lot more time, and we get a lot deeper into her mind state. Finding out more of what she had to do to survive. On top of that Yoshida gets to shine as not being a loser who takes advantage of a girl in a shitty situation. So plus to that. The series has obvious fanservice but it works for the main character as she's dealing with a traumatic past and dealing with that. I also like the girl Yoshida might be seeing, she's cute and awesome.