I remember that there was a guy who was sexual harassed in garden when he was young and son of man who do that to him saw it. Later he wanted to take revenge because he didnt know about harassment (the son). Man who had been harassed was thinking that everything was his fault and in the end wanted to wither together with the greenhouse (in this greenhaouse where he was harassed). I have one page of it:

[img]https://i.ibb.co/FYRYPNv/Screenshot-20210103-144215-Instagram.jpg[/img]

[img]https://www.mangaupdates.com/image/i60678.png[/img]
Nemureru Hana
by Ebihara Yuri

🤣 I almost didn't get this one because I remember the story more for the wedding setup. I was convinced you were looking for Ima wa Tooi Natsu until I realized the art style was all wrong. Pretty sure I've got it right though 😉