Busu ni Hanataba wo.

Pessimistic high school student Hana Tabata doesn't believe her life could ever be like that of a heroine from the shoujo manga she reads—she's convinced she's ugly, and she's always alone. Still, she can't help but imagine herself as a leading lady when she's changing out flowers early one morning...until she's caught in the act by her handsome classmate Yousuke Ueno! Hana can't wrap her head around his kind words at first, but as they grow closer, she finds her life slowly beginning to change…
(Source: Yen Press)