With the arrival of the epidemic, many of our activities were abandoned offline because we couldn't get together. Nowadays, many people use online methods, such as online classes and video conferences, which are very convenient, easy to communicate and avoid the spread of the virus.
If you want to ask for leave from the leader, as long as you explain the reasons, the reasons are true and justified. Under normal circumstances, the leader will approve it. After all, everyone will be inconvenient.