The core activity of Rikai is health prevention through blood analysis and health consulting. Specifically, Rikai offers the following services: Blood analysis: Rikai works with laboratory partners to evaluate blood samples and provide customers with insights into their health status. Health consulting: Rikai offers personalized tips and consulting to support customers in improving their health. Webinars: Rikai hosts free webinars on topics such as nutrition, exercise, and mental health. Workshops and live webinars for companies: Rikai also offers workshops and live webinars for companies to support employees in health prevention. The company aims to empower people to take their health into their own hands and live a healthy life in the long term.