Here is scenario in which NC wins 15 additional games (76 total) but does not finish in first place.

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
          Hanwha	85	54	5	0.6115	0.0
              LG	80	59	5	0.5755	5.0
              NC	76	62	6	0.5507	8.5
              KT	70	68	6	0.5072	14.5
           Lotte	68	68	8	0.5000	15.5
         Samsung	69	71	4	0.4929	16.5
             SSG	68	70	6	0.4928	16.5
             KIA	65	73	6	0.4710	19.5
          Doosan	64	72	8	0.4706	19.5
          Kiwoom	46	94	4	0.3286	39.5

To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
              LG	80	49	3	12	0.620	0.0
          Hanwha	76	53	3	12	0.589	4.0
             SSG	65	60	4	15	0.520	13.0
              KT	65	63	4	12	0.508	14.5
         Samsung	66	64	2	12	0.508	14.5
           Lotte	63	64	6	11	0.496	16.0
              NC	61	62	6	15	0.496	16.0
             KIA	61	65	4	14	0.484	17.5
          Doosan	56	70	6	12	0.444	22.5
          Kiwoom	43	86	4	11	0.333	37.0

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	-	0	0	3	0	1	0	0	0	4	8
Hanwha	0	-	3	1	1	3	1	0	0	0	9
KIA	0	0	-	1	0	0	0	0	2	1	4
Kiwoom	0	0	0	-	1	0	1	0	0	1	3
KT	0	0	0	0	-	4	0	0	1	0	5
LG	0	0	0	0	0	-	0	0	0	0	0
Lotte	1	0	1	0	0	0	-	0	3	0	5
NC	1	0	4	1	1	2	2	-	1	3	15
Samsung	0	0	0	2	0	0	0	0	-	1	3
SSG	0	1	0	0	2	0	0	0	0	-	3
-----------------------------------------------------------------------------------
Losses	2	1	8	8	5	10	4	0	7	10

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	2	0	0	0	0	1	2	1	0	2
Hanwha	2	-	0	0	1	1	0	0	0	0	2
KIA	0	0	-	2	1	0	0	0	0	2	2
Kiwoom	0	0	2	-	0	0	0	1	0	1	0
KT	0	1	1	0	-	0	0	1	0	0	2
LG	0	1	0	0	0	-	3	0	1	0	2
Lotte	1	0	0	0	0	3	-	0	1	1	2
NC	2	0	0	1	1	0	0	-	0	1	0
Samsung	1	0	0	0	0	1	1	0	-	1	2
SSG	0	0	2	1	0	0	1	1	1	-	2
-----------------------------------------------------------------------------------
Total	2	2	2	0	2	2	2	0	2	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	-	8	6	12	4	7	7	5	6	9	64
Hanwha	6	-	12	14	10	8	10	9	8	8	85
KIA	9	4	-	8	8	5	8	6	9	8	65
Kiwoom	4	2	6	-	6	7	5	5	4	7	46
KT	11	5	7	10	-	8	6	6	11	6	70
LG	9	7	11	9	8	-	9	8	9	10	80
Lotte	8	6	8	11	8	4	-	7	10	6	68
NC	9	6	10	10	9	8	9	-	8	7	76
Samsung	9	8	7	12	5	6	5	8	-	9	69
SSG	7	8	6	8	10	6	9	8	6	-	68
-----------------------------------------------------------------------------------
Losses	72	54	73	94	68	59	68	62	71	70

					Scenario Total Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	2	1	0	1	0	1	2	1	0	8
Hanwha	2	-	0	0	1	1	0	1	0	0	5
KIA	1	0	-	2	1	0	0	0	0	2	6
Kiwoom	0	0	2	-	0	0	0	1	0	1	4
KT	1	1	1	0	-	0	2	1	0	0	6
LG	0	1	0	0	0	-	3	0	1	0	5
Lotte	1	0	0	0	2	3	-	0	1	1	8
NC	2	1	0	1	1	0	0	-	0	1	6
Samsung	1	0	0	0	0	1	1	0	-	1	4
SSG	0	0	2	1	0	0	1	1	1	-	6
-----------------------------------------------------------------------------------
Total	8	5	6	4	6	5	8	6	4	6