It's midsummer, the beginning of the school year at University A. When Su Nian was helping her roommate move their luggage, she accidentally knocked over Lu Xingci's experimental box and the parts were scattered on the floor. Su Nian hurriedly apologized. Lu Xingci wanted to frown, but when he saw her squatting on the ground to pick up parts, she had a sycamore leaf on the end of her hair. Like a panicked little squirrel, she said "It's okay" by accident.