So I picked up this manga after watching 3 episodes of the anime as I got really curious, one thing I'll say is that it's a messy rom-com. We have our protonist Yuu Natsume who loves flowers and make accessories inspired by flowers, Himari Inuzuka who's been his best friend since middle-school and Rion Enomoto who loves the accessories Yuu makes. I'll try to spoil as little as possible. The main focus is Yuu and Hinata is running their business in high school with making and selling accessories while being best friends, Hinata proposed that they'd open a shop together and run it and if they're both singleby the age of 30 they'll settle down, which Yuu agreed to. But then comes along Rion Enomoto who I won't spoil too much, but she's in love with Yuu and breaks the usual relationship Yuu and Hinata has.

What I really liked about this manga is the conversations they have, it feels very engaging reading it. The only thing I find annoying is Hinata, she's very selfish and self-centered and does things very weird. She teases Yuu a lot of the time and it's a bit overboard.
I'd recommend to read it before watching the anime, I feel it's not adapted too well thus far.