A collection of short stories:

1. Girl's Union

Tae-chan and Yuu-chan are in a relationship. Holding hands, kissing, being together, Yuu wonders what's next.

2. Slave to Love

Midori always ends up doing what her sempai asks of her. She can't seem to refuse.

3. Full of Memories

Yuki and Rumi are a year apart. Now that Yuki is graduating, they both feel nervous and lonely.

4. Christmas Eve Agape

Lisa corrupts the pure maiden Aika.

5. The Fragrant Sea Breeze

Mikako went from Tokyo to her hometown for her college break. She tutors her distant relative Fuuka.

6-8. Angelic Girl, Cherry Girl & Her Girlfriend

The gloomy Negami Kurako (Nega for short) is only interested in photography. A girl with no confidence in herself whatsoever. She admires a lively girl who is the exact opposite of her, Tsukimiya-san. She's having dreams and fantasies about having sex with her, but in reality she doesn't have the courage to speak with her. Somehow, they still end up going out.

(Source: MangaDex)