Io and Louise's Netorare Adventure Version Final by Wandowando

Overview:
Robin the protagonist meets a girl by the name of Io from the slums.
She was carrying a book that she said was handed down from her high-born mother.
Robin hears Io's pleas, and with the help of his senpai Louise, they begin
to decipher the book.
They look to find out the meaning hidden in the book, while escaping from
enemies whole look to steal the book.​