1. The insurance contract concluded between the plaintiff and the defendant is invalid.

2. The defendant shall be the plaintiff.

1. Basic facts

A. On March 31, 2010, the Plaintiff concluded an insurance contract with the Defendant as the insured on the attached list (hereinafter “instant insurance contract”).

B. From May 30, 2010 to the following table, the Defendant received hospital treatment (55 days in total) and hospital treatment as indicated in the table, and received total KRW 25,107,662 from the Plaintiff according to the instant insurance contract.

<표> 순번 입원일자 퇴원일자 입원일수 진단명 지급금액 1 2010. 5. 30. 2010. 6. 26. 28 요추염좌 840,000 2 2010. 8. 4. 2010. 8. 31. 28 요추염좌 840,000 3 2010. 10. 11. 2010. 10. 29. 19 요추염좌 570,000 4 2011. 1. 3. 2011. 1. 24. 22 경요추염좌 660,000 5 2011. 3. 31. 2011. 4. 16. 17 발목 염좌 510,000 6 2011. 4. 30. 2011. 5. 4. 5 급성 편도염 150,000 7 2011. 7. 25. 2011. 8. 1. 8 인대염좌 840,000 8 2011. 8. 10. 2011. 8. 29. 20 인대염좌 9 2012. 1. 3. 2012. 1. 21. 19 요추염좌 572,856 10 2012. 5. 14. 2012. 5. 23. 10 요추염좌 1,490,000 11 2012. 5. 24. 2012. 5. 31. 8 요추염좌 12 2012. 6. 1. 2012. 6. 15. 15 요추염좌 13 2012. 10. 2. 2012. 10. 9. 8 요추 추간판 탈출증 5,630,000 14 2012. 10. 11. 2012. 10. 24. 14 요추 추간판 탈출증 15 2012. 12. 3. 2013. 1. 3. 32 요추 추간판 탈출증 16 2013. 2. 4. 2013. 3. 3. 28 요추 추간판 탈출증 17 2013. 7. 19. 2013. 7. 29. 11 요추 추간판 탈출증 18 2013. 11. 26. 2013. 12. 24. 29 요추 추간판 탈출증 19 2013. 1. 7. 2013. 1. 26. 20 요추염좌 600,000 20 2013. 12. 17. 지급 후유장해 -약간의 추간판 탈출증 3,006,558 21 2013. 4. 8. 2013. 4. 20. 13 요추염좌 390,000 22 2013. 5. 6. 2013. 5. 24. 19 요추염좌 4,320,000 23 2013. 5. 24. 2013. 6. 13. 21 요추염좌 24 2013. 6. 25. 2013. 7. 15. 21 요추염좌 25 2013. 8. 30. 2013. 9. 17. 19 요추염좌 26 2013. 10. 15. 2013. 10. 29. 15 요추염좌 27 2014. 7. 7. 2014. 8. 20. 45 견관절 상부관절와순 파열 4,688,248 28 2014. 8. 21. 2014. 10. 20. 61 견관절 상부관절와순 파열 555...