From Hoshikuzuu Scans:
1 - 2.5) Toriaezu Kiss Shite Kudasai
Nenji, touch me again! High-schooler, Taira has got a one-sided crush on his buddy, Nenji. One day, Taira invites Nenji over to his place to watch some of his older brother's porn collection, but in the heat of it all, they get turned on and things progress.
3 - 5.5) Shoujo Manga Mitai na Koi wo
TAKI Nekoze
Related works
The mechanic Hase has someone he cannot forget and that someone is Nadaguchi—his classmate he went out with on a punishment game who he later had a bad breakup with. Hase never thought that he would ever meet Nadaguchi again after graduating, but Nadaguchi suddenly joins the company where he works. As Hase spends the following days bearing the full force of the awkward air…