Introducing the [H5] category work titled [Group Buying Viral Scheme], designed to ensure service after sales. This scheme guarantees 100-800 student enrollments in 3 days. The content highlights that the Group Buying Scheme, developed by our company over 21 years and promoted since September 2021, has helped 400 institutions execute group buying recruitment activities, with a total of 80,000 enrollments. Since 2022, the scheme has been upgraded multiple times, with different class schemes set for different campus situations, ensuring recruitment performance while also significantly reducing costs and improving conversion rates. Unlike one-time transactions, we aim to help institutions overcome operational difficulties and seek long-term cooperation. The scheme is suitable for campuses with high classroom vacancy rates, aiming to increase classroom utilization with a minimum of 100 students per time. It is also suitable for campuses with existing生源 but low renewal rates, aiming to lock parents for at least one year. For areas with intense competition and homogenized subjects, the scheme helps to enhance institutional popularity and externalize quality. After the pandemic, it can help improve customer loyalty through a large-scale event. For new subjects or newly established campuses, this scheme is also highly beneficial. This work is created using the online design tool provided by Eqxiu (eqxiu.com) with a rich library of templates for quick creation.