Kingmakers: Year Three by Sophie Lark

From the USA Today bestselling author of the Brutal Birthright series comes a dark college mafia romance series. Welcome to Kingmakers, the most brutal college in the world.
He saw what she did. Now, he holds the power. . .
The ruthless halls of a mafia university are no place for the diminutive and gentle Cat. She barely survived her first year at school, at the cost of her innocence.
Catdid something bad, and Dean Yenin saw it. Now she's being blackmailed by the most vicious bully at Kingmakers.
He offers her a devil's bargain: his silence and protection. . .if Cat belongs to him.
Dean's twisted games of dominance have Cat doing things she never thought she'd do. . . But even the most sadistic games have rules, and Dean's fascination with Cat might just be his undoing.
At Kingmakers, love is a weapon used by the most lethal players.But brokenness can lead to unexpected strength, and sometimes, the one who holds the power is the one most vulnerable to its spell. . .