I Asked You to Repair My Mecha Girl, Not Beg Her for Love All Night

My name is Chu Ye, and I'm Blue Star's top heart-mechanic, able to resonate with machines on the deepest level. After an accident, I transmigrate to a world where mech-girls are highly advanced. Here, mech-girls aren't just vehicles or weapons: they're girls with feelings of their own. But most of them share a fatal flaw: the “Heartlock.” When their emotions become too intense, their cores shut down, their performance plummets, and they're reduced to scrap metal. I thought I could use my unique talent as a heart-mechanic to become a therapist for mech-girls, giving rich women's mech-girls “counseling” and “deep maintenance,” then live the high life with luxury cars and beautiful women. Who knew that from the start I'd meet a battle-scarred mech-girl who had shut herself away after her master died in battle, then been abandoned by her family? “Make a pact with me. Everything I have is yours.” Sure, unlocking mech-girls is what I'm best at. But why is this cold, Valkyrie-like mech-girl looking at me differently and differently after I unlock her? When a once-prodigious racing mech-girl, a sweet and adorable support mech-girl, and even an enemy yandere assassin mech-girl line up at my door, begging to be “unlocked”... I realize things are getting pretty exciting.