Kokoro ni Hana wo! is a very simple yet heartwarming manga. It's plot and theme is simple, the characters are simple as well, but it manages to be completely heartwarming and captivating to a reader who just wants to read a feel-good story with likeable characters.
It's a story of 5 unrelated brothers who have lost their adoptive parents to a horrible accident, and how one of the brothers strives to build their family back together again by taking up his mother's flowershop.
It's a simply sweet manga, and if you want to read something with this simple and warm quality, then I highly suggest that
you pick this up, it's worth the read!
Just don't expect any high-end plot, or any serious romantic factors. Just brothers and a family striving to bring happyness with every flower they sell!