Himitsu no Hanazono (Nana SHIIBA)

From [Chibi Manga](https://www.mangaupdates.com/groups.html?id=1829571901): Tempted by the fragrance of the forbidden flower. At the funeral of the boss who died in an accident, it was love at first sight for Kazuki towards the widow, Shiori. Despite finding it unscrupulous, under the pretext of asking about her late husband, Kazuki visited the beautiful Shiori frequently. In doing so, he became able to see a certain truth…?! That encounter will change his fate…