2025-06-15 / Last updated : 2025-06-16 Mayumi Metcalfe News The 5th JSS Challenge Concluded with Great Success! On June 8th, the 5th JSS Challenge took place under sunny skies.
2025-04-25 / Last updated : 2025-05-02 Mayumi Metcalfe News JSS Challenge 2025 We are pleased to announce the 5th annual “JSS Challenge”. SUN, JUNE 8, 2025 10:30AM～
