Hello poster, the props that can be found in the Poseidon treasure box in Food Wars Mouse are:

Poseidon series exclusive gems (Shadow Saint Cloth, Shadow Brute Force, Shadow Super Blade ), 9-star one-turn cards (powerful tar watering can, Yanyang dragon fruit, snow mountain durian), various 7-star cards and food recipes (Laffy limited edition, Mapo tofu), ultimate skill books (tar watering can, dragon fruit, Durian)

I apologize for my rude behavior and hope it will be adopted. Thank you!