Does the subject want to ask "What are the ways to unlock all the clothes in Onion College"? Onion coin purchase, experimental field stage reward, ladder stage reward, puzzle piece. Onion College, formerly known as Onion Mathematics, is a K 12 online education brand with all disciplines. The course covers all primary schools, junior high schools and senior high schools. The students dressed themselves. All the ways to unlock clothes are onion coin purchase, trial site stage reward, ladder stage reward and puzzle piece exchange. Clothes are divided into three categories: S-class rare, A-class advanced and B-class ordinary. Clothes also have a gain effect and extra rewards for suits.