Should I be held criminally responsible for not starting a fight and causing minor injuries?

Beating others and causing minor injuries has constituted the crime of intentional injury. I suggest you make peace with the victim. If a settlement is reached, the other party is willing to forgive you (be sure to find a professional lawyer to write relevant documents, agreements and letters of understanding, and you can click on my avatar to let me help you write a book). You may be exempted from criminal responsibility. Otherwise, you can't reach an agreement with him, and you may be in danger of going to jail. Of course, if you can't reach an agreement, you can ask a lawyer to meet you, understand the specific circumstances and charges of the crime, provide legal help, and help you apply for bail pending trial. If you need to hire a lawyer, you can click on the portrait of this lawyer and have the contact information of this lawyer (this lawyer is an expert lawyer in criminal law).