Sereila of Silver - Vol.2 Extra MangaAll chapters are in Sereila of Silver
A Girl Who Unconsciously Acts Boyish Chapter 4: A story about Mutou-kun, who wishes to become manlier, and Satou-san
Asa Made Renai chu! ~ Osananajimi wa Tokimekanai? ~ Vol.1 Chapter 9: I won't shoot you until morning!