Hatsukoi Limited

Ayumi Arihara and her friends are curious about love, with Ayumi to be the first one to find out the trials love can bring. Misao Zaitsu, a student one year older than her with a terrifying visage, gives her a love letter. She is frightened out of her wits. This is but the start of a Love Dodecahedron that encompasses Ayumi, her friends and classmates.

By Mizuki Kawashita, the creator of Ichigo 100%, the Hatsukoi Limited manga was cut short in its run, but it got an anime adaptation in Spring 2009 by J.C. Staff.

Tropes used in Hatsukoi Limited include:

All Love Is Unrequited
All Men Are Perverts -- A good amount of the male cast, and the main cause of distress for the (well-endowed) Meguru.
Always Someone Better -- Meguru, to Takei.
A-Cup Angst -- Koyoi and Ayumi.
Big Brother Worship -- Koyoi does this so much that her friends can almost predict when it will happen.
Brother-Sister Incest -- Runs in both directions. Ayumi's brother is a little too into her, while Koyoi is pretty much defined by her brother complex.
Big Breasts, Big Deal-- Type 2 with Meguru, who puts her swiming career on hold due to all the unwanted attention
Cannot Spit It Out -- Goes for a lot of the couples, but Kei and Kusuda are the ones that display it the most.
Class Representative -- Meguru.
Cool Big Sis -- Misaki plays this role to Mamoru.
Cosplay -- The ending credits are a slideshow of the many girls of the cast in various cosplay outfits.
Crash Into Hello -- Combined with Dropped Glasses for Sogabe and Nao's Meet Cute.
Crossdresser -- Kusuda has few qualms about donning a female cheerleader outfit for the sake of class spirit.
Date Peepers -- Koyoi.
Diegetic Theme Cameo -- Ayumi and Koyoi's not-very-good duet of the opening theme with karaoke.
Dojikko -- Soako
Dude, She's Like, in a Coma -- Done deliberately on the part of Kusuda and his sleep-inducing pun storm. Subverted when, whether she was toying with them or really in some form of sleepwalking, Misaki begins performing wrestling moves on Mamoru when he gets close.
Dynamic Entry -- (particularly in the Anime) Ayumi barges into Mamoru's class to deliver a bento to him, bowling over Kusuda and Sogabe humorously (with her outstretched hands) in the process with little warning (well, she did give a warning, but she was moving to fast for anyone to respond).
Fan Service
Face of a Thug -- Misao Zaitsu, though he's really just a shy guy who's fallen in love with Ayumi.
Gag Boobs -- A major source of distress for Meguru (she quit swimming because her boobs got big quite early, and would draw a lot of stares especially if she was in a swimsuit; she goes as far as to wear bras a few cup sizes smaller to hide them)
The Glomp -- Koyoi to her brother, whenever she can.
Hotblooded Sideburns -- Gengoro Takei sports a magnificent pair of these.
Hurricane of Puns -- To the point it puts Misaki to sleep. That's talent.
Jerk with a Heart of Gold -- Etsu Kusuda, although even when he is nice he gets shot down by Kei.
Lolicon -- The twentysomething man seen proposing to Kei Enomoto in a Flash Back.
Love Chart -- Keeping track so you don't have to.
Love Dodecahedron
Love Letter Lunacy -- What starts the story.
Master of the Mixed Message -- Rika Dobashi gives canonical Love Interest Haruto Terai the impression that she's leading him on, until she gives him their First Kiss.
Meet Cute -- Lollipop in the mouth means love as far as Misaki is concerned.
Meganekko -- Meguru.
Oral Fixation Fixation -- Misaki Yamamoto and her lollipops.
Panty Shot -- no shortage of them.
Small Name, Big Ego -- Sogabe.
Tear Jerker -- An in universe example, when Yukito's sudden departure sends Nao running in tears.
Tsundere -- Kei Enomoto.
Unlucky Childhood Friend -- Mamoru in relation to Misaki. She's been his next door neighbor for years, he loves her, but she loves Ayumi's brother.
Vapor Wear -- The side story features Soako and her adventures running around the school without panties. Hilarity ensues, of course.
Waif Fu -- Ayumi has the body of a middle school student and some impressive kicking power. She even manages to double-team with Misao in the Valentine's Day episode and intercept Misaki's chocolate with gusto.
Walking Shirtless Scene -- Takei, whom Meguru admires, is a member of the swim club, and goes around in swim trunks and not much else...all the time.
Wrestler in All of Us -- Beware of a sleeping Misaki. She's a wrestling fan, and knows the moves.