① LEC Selected Answer Practice - Skill Development Edition, all 12 sessions * Writing with a marker up to question 8 of the 1st session. * Writing with a marker up to question 5 of the 4th session. * Almost all multiple-choice questions in the 10th session have pen markings. ② Ito Juku Multiple-Choice Practical Skill Development Answer Practice, all 12 sessions (Title written on the spine with a marker) * Almost all questions in the Civil Law 1st session have pen markings. * Writing with a pencil up to question 2 in the Real Estate Registration Law 1st session. * Writing with a pen up to question 2 in the Company Law, Commercial Law, and Commercial Registration Law 1st session. This is the answer explanation. The answer explanation has questions, answers, and explanations for each question in a question-and-answer format. I apologize if I missed anything.