Here is scenario in which NC makes the postseason with 21 additional wins (46 total).

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
             KIA	117	26	1	0.8182	0.0
              LG	113	27	4	0.8071	2.5
             SSG	103	38	3	0.7305	13.0
         Samsung	100	43	1	0.6993	17.0
              NC	46	94	4	0.3286	69.5	See explanation of tie-breakers below.
          Doosan	46	94	4	0.3286	69.5	See explanation of tie-breakers below.
          Kiwoom	46	95	3	0.3262	70.0
              KT	45	95	4	0.3214	70.5
           Lotte	45	95	4	0.3214	70.5
          Hanwha	43	97	4	0.3071	72.5

Explanation of Tie-breakers:
Doosan and NC tie for fifth place and play a post-season game; the winner goes on to the wild-card game.

To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
             KIA	26	16	1	101	0.619	0.0
              NC	25	17	1	101	0.595	1.0
         Samsung	24	18	1	101	0.571	2.0
          Doosan	25	20	1	98	0.556	2.5
              LG	23	20	2	99	0.535	3.5
             SSG	23	20	1	100	0.535	3.5
          Kiwoom	18	24	0	102	0.429	8.0
              KT	18	25	1	100	0.419	8.5
          Hanwha	16	26	1	101	0.381	10.0
           Lotte	14	26	1	103	0.350	11.0

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	-	5	0	5	7	0	0	4	0	0	21
Hanwha	4	-	0	6	4	0	2	11	0	0	27
KIA	10	11	-	12	10	7	14	13	4	10	91
Kiwoom	5	3	0	-	11	0	4	5	0	0	28
KT	2	6	0	0	-	0	11	8	0	0	27
LG	11	14	3	11	13	-	10	10	10	8	90
Lotte	13	9	0	4	0	0	-	5	0	0	31
NC	6	0	0	9	1	0	5	-	0	0	21
Samsung	10	13	7	11	14	0	11	10	-	0	76
SSG	13	10	0	13	10	0	12	11	11	-	80
-----------------------------------------------------------------------------------
Losses	74	71	10	71	70	7	69	77	25	18

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	1	0	1	0	0	1	0	0	3
Hanwha	1	-	0	1	0	0	1	1	0	0	3
KIA	0	0	-	0	0	0	0	0	0	0	0
Kiwoom	0	1	0	-	0	0	2	0	0	0	3
KT	1	0	0	0	-	0	1	2	0	0	3
LG	0	0	0	0	0	-	0	0	1	3	2
Lotte	0	1	0	2	0	0	-	0	0	0	3
NC	1	0	0	0	2	0	0	-	0	0	3
Samsung	0	0	0	0	0	0	0	0	-	0	0
SSG	0	0	0	0	0	2	0	0	0	-	2
-----------------------------------------------------------------------------------
Total	3	3	0	3	3	2	3	3	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	-	9	2	10	12	4	1	7	1	0	46
Hanwha	6	-	1	8	7	1	3	12	1	4	43
KIA	13	15	-	16	13	11	16	15	6	12	117
Kiwoom	6	7	0	-	12	4	9	5	2	1	46
KT	3	9	3	4	-	1	12	11	0	2	45
LG	12	15	5	12	15	-	15	14	13	12	113
Lotte	15	12	0	5	3	1	-	6	2	1	45
NC	8	3	1	11	3	2	10	-	3	5	46
Samsung	15	15	10	14	16	2	14	13	-	1	100
SSG	16	12	4	15	14	1	15	11	15	-	103
-----------------------------------------------------------------------------------
Losses	94	97	26	95	95	27	95	94	43	38

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

# NC Dinos magic number
# NC's magic number
# Dinos magic number
# KBO Playoff Race