He promised her the world, Then, abandoned her at the altar.

Anne

I’m a realist, cynical about falling in love. Until I met Declan - the rich and powerful player. With his quiet determination, he dismantled my cynicism and made me believe.
Before I know it, I’m flashing a radiant smile, dressed, and eagerly awaiting him at the altar.
Only, I got the text - "I'm not coming" – shattering my world.
Regret is a waste of time; I stand by my original convictions.
Years later, he’s back demanding a second chance, how dare he?

Declan

I shook on the agreement without hesitation because I had zero plans to marry for love. Ever.
Years later, Anne crashed into my life. I find myself craving what I thought I didn't need or want.
Unexpectedly, the agreement I made resurfaced, presenting me with a dilemma:

Marry as agreed or Lose Anne forever.

Deal accepted, regardless of hurting Anne.
When I find Anne again, she’s engaged, far as I’m concerned, she’s still mine.
I’ll cheat, steal, and fight before I let Anne marry another.
All is fair in love and war. And this is war...hope he’s ready to fight?

The Handshake agreement is a contemporary, age gap, second chance romance with a Possessive MMC.