Akira, a student of the music department, played the violen only for Ibuki who is her teacher and lover. Akira is entirely devoted to Ibuki while Ibuki's love devours all of Akira to where she has lost the distinction of herself. She believed that Ibuki was her entire world. That was until she met Seike Hayato, a classmate who is the complete opposite of her... An intense, sad love story unfolds on stage in the world of classical music!
(Source: Midnight Scans)

It contains 5 stories:

1) Erotic Trigger: Yoshino's boyfriend, Koyota, only seems to have one thing on his mind-sex. Yoshino loves him but is dying for a little romance. Can Koyota pull back enough for her birthday?
2) Liar Trigger: Akira works in designing women's and underwear he's VERY serious about it. His work always ends up to be the end of his romances because he will always bluntly chose work over women. But his co-worker Ririko seems to be different. Can she be the one woman he can truly count on?
3) Mint Trigger;
4) Vibrating Trigger ;
5) Summer Trigger.

NOTE: The last two stories contain yuri themes.