A Teasing Sweet Talk! My Scheming Younger Lover Has Been Plotting This for Ages

Any Stories Where the Male Lead Pretends to Be a Sweet-Talking Green Tea? (~￣▽￣)~

I've really been craving this kind of story lately ahhhhh!

Any Older Woman-Younger Man Romance? Please!!!

I'm looking for books like I Raised the Villain into My Husband. He's not her biological son, and the male lead, her younger brother, is dark and obsessive.

Any Stories About a Younger Boyfriend? Preferably Completed (I'm a Little Picky)

The heroine is a few years older than the male lead and is also his younger brother's good friend. The younger brother has been plotting to win her over for ages.

Any Stories Where a Younger Brother with No Blood Ties Falls for His Older Sister?

I want a story with a rather cold-hearted female lead and a younger brother who's very attached to his older sister. Ideally, the male lead can keep the female lead like a canary later on.

Younger-Man Romance: A Sweet Puppy in Public, a Little Wolf Behind Closed Doors

The Male Lead Has Been Scheming for Ages and Takes the Initiative When Needed, With Extra-Sweet Bonus Chapters

Looking for books similar to Madam, the Heir Apparent Has Been Plotting This for a Long Time.