Ella's New Life - training post (Pixiv Fanbox)

Continuation of the Ella's New Life comic. Ella is a college student who went missing. Her master is letting her record a video message for her mom, explaining what her life is like now. Ella: This is my training post. I'm supposed to practice with it while my master is away. Ella: I used to struggle to get the whole thing in my mouth, but now I can fit it in no problem.