Tập 23: Buổi học nhóm của Jun'ichi khiến anh nghi ngờ về mối quan hệ với Nemu

23

Jun'ichi organizes a study session to help finish his neglected homework, but the other girls are seemingly forgetting that he and Nemu are more than siblings, and even they begin to doubt their relationship. They had brought a pair of watches but soon can't remember why did they. (Source: Wikipedia)