すると

すると is used to link a preceding event or condition to a sudden consequence or reaction in the following clause. It emphasizes a natural, often noteworthy result that follows from what happened, especially when the speaker wants to highlight the sequence of events or a turning point. It can carry a sense of “thereupon,” “and as a result,” or “If that is the case, then…” and is common in storytelling or explanations of what happened next. It is similar to 〜するとき or 〜と, but すると has a stronger sense of the immediate result or reaction. Use it when you want to show a cause-and-effect sequence that leads to a concrete outcome.)