to subject someone to aggressive pressure or intimidation, often causing distress or discomfort
嫌がらせる
to repeatedly and annoyingly ask someone something, particularly as a way of persuasion
しつこく尋ねる
to constantly chase, pressure, or follow someone to gain or achieve something
追い回す
to irritate someone or cause problems for them, particularly by asking them to do something over and over again
面倒をかける
to cause pain, suffering, or distress, often as a result of illness, injury, or hardship
苦しめる
to secretly investigate or look around to discover private information about someone
こっそり調べる
to secretly listen to a conversation without the knowledge or consent of those involved
盗み聞きする
to secretly enter an organization or group with the aim of spying on its members or gathering information
潜入する