Ou Yan looked at him with a hint of admiration in her eyes.Not long after, Si Yechen let her take a look at the screen. Ou Yan saw the last formula and suddenly realized a new way..."I understand," sh...Meanwhile, Ou Yan tricked him into sleeping and then got busy with her own business in the master bedroom until hours later when the plane landed.Li Sen slept for a long time and when he woke up, he f...