Which volume should I get after season 1?

Saw 13 volumes of blue box. Was wondering where do I start at this point in season 1? I’m definitely gonna read and don’t want to wait after season 1 ends. Don’t

Saw 13 volumes of blue box. Was wondering where do I start at this point in season 1? I’m definitely gonna read and don’t want to wait after season 1 ends. Don’t