I Crashed My First Love's Party with My Daughter's Portrait

He promised his daughter he'd attend her graduation, but returns from a business trip only to find her dead. Digging into the tragedy, he uncovers a sickening truth: his wife neglected their child to dote on her first love, even stealing their daughter's college fund to finance his startup. Crushed by grief, the devoted father vows to make them pay. Armed with damning evidence, how far will he go to avenge his little girl?