I Stay True to Myself in Classroom of the Elite

Question: What's the best choice a Classroom of the Elite fanfic author could make after transmigrating into the world of Classroom of the Elite? The paper characters he'd imagined suddenly became three-dimensional beauties. Looking at the long-haired pink-haired girl beside him and the words "Worldline Deviation" before his eyes, Kurosawa Yu smiled faintly. Looks like I have no choice but to join in. Then let me interfere in your lives! "Kamuro, I want you to become the pillar of Class A." After successfully catching a certain phantom thief shoplifting at a convenience store, Kurosawa Yu said this. Kamuro Masumi: ? "Ichinose, you clearly know what I think, yet you insisted on deceiving yourself before... Now it's too late." On the eve of his transfer, Kurosawa Yu spoke coldly to Ichinose, who wanted him to stay. "No, it's not too late." Resolute, Ichinose grabbed his arm. "As long as you stay in Class B, I'll... do anything." Faced with Ichinose lowering her guard and letting him take whatever he wanted, Kurosawa Yu fell silent. Maybe... it wasn't such a bad idea? ...A note before reading: Since the characters start with different affection levels, the protagonist treats each of them differently.