Here is scenario in which NC wins 91 additional games (113 total) but does not finish in first place.

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
              LG	114	30	0	0.7917	0.0
              NC	113	30	1	0.7902	0.5
          Doosan	83	57	4	0.5929	29.0
         Samsung	81	62	1	0.5664	32.5
          Hanwha	75	66	3	0.5319	37.5
              KT	65	75	4	0.4643	47.0
             KIA	59	81	4	0.4214	53.0
          Kiwoom	57	86	1	0.3986	56.5
           Lotte	39	102	3	0.2766	73.5
             SSG	22	119	3	0.1560	90.5

To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
              LG	33	20	0	91	0.623	0.0
              KT	32	20	1	91	0.615	0.5
         Samsung	31	20	1	92	0.608	1.0
             KIA	28	25	1	90	0.528	5.0
          Hanwha	27	25	0	92	0.519	5.5
          Doosan	25	28	1	90	0.472	8.0
              NC	22	29	1	92	0.431	10.0
             SSG	22	30	1	91	0.423	10.5
           Lotte	21	30	1	92	0.412	11.0
          Kiwoom	20	34	1	89	0.370	13.5

The next two tables show, respectively, how many of their remaining games each team wins and ties against each of the other teams in the scenario:

					Scenario Additional Wins Against
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Wins
Doosan	-	10	7	11	10	0	10	0	0	10	58
Hanwha	0	-	10	11	7	0	12	0	0	8	48
KIA	0	0	-	0	10	0	10	0	0	11	31
Kiwoom	0	0	10	-	7	0	0	0	10	10	37
KT	0	0	0	0	-	0	12	0	11	10	33
LG	10	10	8	10	11	-	10	1	11	10	81
Lotte	0	0	0	10	0	0	-	0	0	8	18
NC	12	11	10	10	10	10	7	-	10	11	91
Samsung	7	10	11	0	0	0	11	0	-	11	50
SSG	0	0	0	0	0	0	0	0	0	-	0
-----------------------------------------------------------------------------------
Losses	29	41	56	52	55	10	72	1	42	89

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	0	3	0	0	0	0	0	1	0	3
Hanwha	0	-	0	0	3	0	0	0	0	0	3
KIA	3	0	-	0	0	0	1	0	0	0	3
Kiwoom	0	0	0	-	1	0	0	0	0	0	0
KT	0	3	0	1	-	0	0	0	0	0	3
LG	0	0	0	0	0	-	0	0	0	0	0
Lotte	0	0	1	0	0	0	-	0	0	2	2
NC	0	0	0	0	0	0	0	-	0	1	0
Samsung	1	0	0	0	0	0	0	0	-	0	0
SSG	0	0	0	0	0	0	2	1	0	-	2
-----------------------------------------------------------------------------------
Total	3	3	3	0	3	0	2	0	0	2

The next two tables show, respectively, how many total games each team wins and ties against each of the other teams in the scenario:

					Scenario Total Wins Against
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Wins
Doosan	-	11	10	14	12	2	14	3	4	13	83
Hanwha	5	-	12	15	9	3	14	2	1	14	75
KIA	3	4	-	6	11	2	14	2	3	14	59
Kiwoom	2	1	10	-	9	2	2	4	13	14	57
KT	4	4	5	6	-	4	14	4	12	12	65
LG	14	13	14	14	12	-	14	5	13	15	114
Lotte	2	2	1	14	2	2	-	2	3	11	39
NC	13	14	14	12	12	11	14	-	10	13	113
Samsung	11	15	13	3	4	3	13	6	-	13	81
SSG	3	2	2	2	4	1	3	2	3	-	22
-----------------------------------------------------------------------------------
Losses	57	66	81	86	75	30	102	30	62	119

					Scenario Total Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	0	3	0	0	0	0	0	1	0	4
Hanwha	0	-	0	0	3	0	0	0	0	0	3
KIA	3	0	-	0	0	0	1	0	0	0	4
Kiwoom	0	0	0	-	1	0	0	0	0	0	1
KT	0	3	0	1	-	0	0	0	0	0	4
LG	0	0	0	0	0	-	0	0	0	0	0
Lotte	0	0	1	0	0	0	-	0	0	2	3
NC	0	0	0	0	0	0	0	-	0	1	1
Samsung	1	0	0	0	0	0	0	0	-	0	1
SSG	0	0	0	0	0	0	2	1	0	-	3
-----------------------------------------------------------------------------------
Total	4	3	4	1	4	0	3	1	1	3