Ayaka ist die Vorzeigeschülerin der renommierten Seiran-Akademie: Sie hat hervorragende Noten, ist freundlich und überaus beliebt. Doch mit dem Eintritt in den Highschool-Zweig der Akademie bekommt sie unerwartet Konkurrenz von Yurine. Im Gegensatz zu Ayaka hat diese zwar überhaupt keinen Spaß am Lernen, jagt ihr aber trotzdem ohne Probleme den Rang als Schulbeste ab. Das ärgert Ayaka so sehr, dass sie ihrer Rivalin den Kampf ansagt. Yurine lässt sich darauf jedoch überhaupt nicht ein, denn sie interessiert sich viel mehr für Ayaka selbst als für irgendwelche Noten …

Maya steht kurz vor ihrem Schulabschluss und möchte danach an eine Uni gehen, die weit entfernt liegt. Ihre Freundinnen Ai und Chiharu befürchten, dass sie sich aus den Augen verlieren werden. Während Ai versucht, Maya einen Stein nach dem anderen in den Weg zu legen, geht Chiharu lieber auf Abstand und frisst ihre Gefühle in sich hinein. Durch einen Zufall lernt diese ein Mädchen namens Izumi kennen, das ihr schließlich einen Schubs in die richtige Richtung gibt ...

Yurine never expected to start her second year at Seiran Academy being strong-armed into joining the gardening club, but its last two members—Yukina Ooshiro and Towako Mita, the club president and vice president—are desperate to leave their legacy intact after they graduate. Will Yurine blossom under their tutelage, or will the gardening club wither and die...?

The track team is headed to Regionals, and it's Mizuki's last chance to qualify for Nationals before she and Moe graduate. But with the pressure of the race on her shoulders, Mizuki can't seem to concentrate on running, forcing Moe to suggest Mizuki take a break...from Moe! Meanwhile, an old classmate of Yurine's resurfaces and has her sights set of the "cool girl genuis" — can she manage to sway Yurine's affections?

Sawa Itou lost touch with her childhood best friend, so imagine her surprise when her old friend, Itsuki, shows up in her digital media club! Meanwhile, a surprise phone call from Ayaka's mother has unhinged her, and her relationship with Yurine struggles...The story of kissing girls continues—!

Yellow for gratitude. Pink for respect. Violet for apology. Red...for that someone special...This is the language of ribbons wrapped around flowers. What does it mean, though, when the person giving Izumi a flower wrapped in red is handing them out to multiple people? Is it okay for Izumi to keep it, even though Chiharu is the only one for her? While Izumi grapples with this question, Chiharu has to decide what's important to her when the one who broke her heart, Hoshino-senpai, pays a visit...

Little shakes the genius Yurine Kurosawa...But meeting Haine Aoi, a newcomer to the gardening club, puts Yurine's composure to the test. Struggling to gain a sense of independence from her high schooler aunt, Haine is looking for a new role model in Yurine. It seems, though, that Haine has yet to grasp what it really means to be "grown-up." When the new girl says something that pierces Yurine's usually apathetic armor, can Yurine manage the situation in a manner befitting a good upperclassman?

The student council presidential election is announced at Seiran Academy, and student council officers Hikari Torayama and Nagisa Tatsumi both have their eyes on the prize. The two are engaged in fierce competition, but it seems that's not all that's going on between them! Meanwhile, Ayaka, who's being pushed to also enter the race, is left wondering if it's really wise to divert her attention from Yurine...

Novice cosplayer Mikaze never would have guessed that Aska, a local cosplayer she admires, could be a fellow student at Seiran Academy. But when they run into each other in the hallway one day, well...the rest is history. Despite Aska's elusive demeanor, the two soon become inseparable. However, their road ahead together gets rocky when it appears cosplay is the only thing they have in common...

After a life defined by grades, Ayaka thought taking back the top spot was all she wanted from Yurine. But even though she's finally won, Yurine is still all Ayaka can think about. No longer able to hide behind her studies, Ayaka must confront the feelings she's suppressed for so long and decide-who is Yurine to her now? Everything falls into place in this final volume of Kiss and White Lily for My Dearest Girl!