Because it's You.

Both Churu and Lexi were surprised seeing his passionate complaint regarding the difference between Lexi's former system and his. Based on his reaction earlier, they were certain that he was disappointed. 

However, by the looks of it, Ethan Lu was displeased at the fact that he didn't have the same exciting system. Although Battle of Life was what he needed, his wants were that the same Otome Love System. 

"You're not mad?" Churu innocently blinked her eyes as she asked. 

"Huh? Why would I?" Stopping from his series of complaints, Ethan Lu glanced at the dumpling perching on the table. "Anyway, good job." Ethan Lu offered his knuckles for a fist bump. 

Though appalled at his reaction, Churu willingly bumped in his fist by hers. Little did she know, Ethan Lu recalled her statement "shooting love arrows since day one" yesterday.