C428 Take Care of Yourself

"Big brother!"

Rong Sihan had already reached the elevator. Rong Beichen chased after him.

He turned his head slowly and stared at Rong Beichen coldly without saying a word.

"According to my investigation." Since his elder brother already knew about his investigation, he no longer planned to hide his suspicions from the bottom of his heart, "You received treatment from Dr. Smith back then