His Favorite(2006)

Aitsu no Daihonmei

Awkward Yoshida is hated by all the girls in school for his perceived closeness with hot guy Sato, who uses hanging out with Yoshida as an excuse to turn them all down. If Yoshida is merely an excuse, why does Sato taunt him in private about “his favorite”? Is it possible Sato’s feelings run deeper than friendship? And what could he possibly see in the funny-looking Yoshida? Watch Yoshida’s life turn upside down with hilarious results!

(Source: SuBLime)

Note:
Includes the one-shots "Kimi wa Happoubijin" (You're Everyone's Friend), "Kame no Koi wa Mannen" (A Tortoise's Love Lasts For A Thousand Years, Love is Swallowed Whole), and "Koi wa Marunomi" (Love is Swallowed Whole).