Innocent-to-sensual florist shopkeeper, the boss's kept lover x high-IQ, scheming, gentle CEO
(There may be a groveling arc, depending on how our Mr. Jing behaves.)
Jing's perspective: I cleaned up my sister's mess and picked up a kept lover along the way. Still, Yi is pretty cute. Why does my kept lover keep getting into trouble and making me save him? Can I just stop keeping him? Sob. Just kidding, I love my wife most of all. Give me a hug, darling. I want more, darling (what am I saying?).
Shi's perspective: After becoming a kept lover, I was rescued by my wife, spoiled by my wife, and got to cuddle with my wife...
Yi's perspective: I'm the odd one out. Then I'll leave QAQ
The author is patiently building up a stockpile of chapters.
Mr. Jing may have some psychological issues.
Shi Yi and Shi Wan aren't related by blood.
Both are sexually inexperienced.
Same-sex marriage is legal.
Theme: Overcome psychological struggles and fall in love.