Accel Kitchen LLC has launched Japan largest cosmic-ray outreach network providing handy cosmic-ray detectors to more than 100 high school and junior high school students and supporting their research activities remotely with online communication tools. There are over 30 various and unique research topics conducted by students e.g. measurement of the cosmic-ray flux at Japan's highest mountain Mt. Fuji to investigate the relationship with altitude, comparison of cosmic-ray flux with sunspot counts observed by the school's telescope, collaboration with students in Argentina to compare the cosmic-ray flux between Japan and Argentina to observe the effect of the South Atlantic Anomaly. Online research support by undergraduate and graduate students enables them to conduct scientific research and some of their progress has been published in peer-review papers.In this presentation, we will introduce their research activities.