Kaji Ryouko x Akagi Masafumi: [medium controls collection RoughAndSmooth]
Sugawara Takurou x Takano Chizuru: [medium controls collection GirlsCanBeDenseToo]
Furuya Jun x Minagawa Yuki: [medium controls collection HardcoreTeasing]
Overall series collection: [medium collection TsurezureChildren]
If you're wondering who the girl in the very first comic is, she appeared waaaaaaaay back in chapter 3, which was also the first appearance of the LOVE MASTER. He tried to cheer her up after she was rejected. She proceeded to beat him up.