Su Jin had business matters to attend to abroad over the next few days, and Liu Shiran went along with him. Once their work was finished, the two of them planned to stay and travel for a bit, enjoying a long-overdue world for two without the interruption of that "light bulb," Su Yizhou.
They left only Su Yizhou at home to act as an "empty-nest child"—no, wait, there was someone else keeping him company sometimes.
He was already in middle school, so the house didn't necessarily need adults watching over him; that was what Liu Shiran and the others thought. Besides, they had always adopted a "free-range policy" toward Su Yizhou and never worried about his studies at all.
Chapter 71