Boku to Sono Tsuzuki wo

1, 6. Boku to Sono Tsuzuki wo (僕とその続きを)
College student Shiina while dead drunk on the side of the road was carried off by a man. However right in the middle of “it”, he realized his partner is none other than his professor Asahina...?! The bittersweet love between a shitty college student and a hot and cold professor.

2-3. Osenai Chime (押せないチャイム)
4-5. Koi Hitoyo (恋一夜)