The girls of Saint Michael's annex have always admired and looked up to lovely young ladies of the main campus. So naturally, they blossom with newfound excitement when they hear of the main campus' Best Couples poll. Though eager to cast their votes, it also makes them wonder--who are the Best Couples of the annex? This brand-new title in the Petals franchise introduces a trio of new couples with love blooming in the air.
Story
At the Saint Michael Girls' School... festivities erupted among the girls of the annex. The reason for their celebration is the Best Couples poll being held at the main campus. The students at the annex, who look up to the girls from the main campus, decided, "Let's have our own Best Couples!"
...It was always inevitable.
And so, the fairest and most intimate couples were nominated...
The first couple is a pair of childhood friends, Misawa Nagisa and Takahata Rina. The second couple is a pair of twin sisters, Kimishima Ai and her younger sister Aya. And finally... The transfer student who saw this whole thing as no concern of hers, Onohara Hazuki, is shocked to hear that she too, was chosen to be among the Best Couples.
Moreover, her partner is the sheltered young debutante, Suoh Manami. Actually, Hazuki has secretly been crushing on the impeccable Manami... But the truth is, they're far from a couple, and while their classmates may cheer them on, it's all in vain.
But then... Hazuki works up all her courage to ask Manami to become a "Best Couple" with her, and...
Source: The Publisher Website.