Hatsukoi Jikan.

1. Kumori Garasu no Mukou (曇りガラスのむこう); Comic ExE 20
2-3, 10. Little My Maid; Comic ExE 16, 18, kakioroshi
4-5. Tomura to Julie (トムラとジュリ); Comic ExE 26, kakioroshi
6. Love ＆Sick; Comic ExE 11
7. Flying Start! (フライングスタート！); Comic ExE 14
8, 11. Flag Kaishuu wa Totsuzen ni (フラグ回収は突然に); Comic ExE 24, 25
9. Re:Hatsukoi (Re:初恋); Comic ExE 22

Note: Chapter 11 was included in the digital version.