diff --git a/asm/kinstone.s b/asm/kinstone.s
index 45621207..4f28742e 100644
--- a/asm/kinstone.s
+++ b/asm/kinstone.s
@@ -51,49 +51,3 @@ _08018536:
 _08018550: .4byte gUnk_02033AB8
 _08018554: .4byte gUnk_080B3D14
 _08018558: .4byte 0x00000C81
-
-	thumb_func_start sub_0801855C
-sub_0801855C: @ 0x0801855C
-	push {r4, r5, r6, lr}
-	ldr r4, _08018570 @ =gUnk_02033AB8
-	adds r0, r4, #0
-	movs r1, #0x14
-	bl MemClear
-	adds r5, r4, #0
-	ldr r4, _08018574 @ =gUnk_080B3D20
-	movs r6, #0
-	b _0801858C
-	.align 2, 0
-_08018570: .4byte gUnk_02033AB8
-_08018574: .4byte gUnk_080B3D20
-_08018578:
-	adds r0, r4, #0
-	bl sub_080185B4
-	cmp r0, #0
-	beq _08018584
-	ldrb r6, [r5, #3]
-_08018584:
-	ldrb r0, [r5, #3]
-	adds r0, #1
-	strb r0, [r5, #3]
-	adds r4, #4
-_0801858C:
-	ldrb r0, [r4]
-	cmp r0, #0xff
-	bne _08018578
-	strb r6, [r5, #3]
-	ldrb r0, [r5, #3]
-	lsls r0, r0, #2
-	ldr r1, _080185B0 @ =gUnk_080B3D20
-	adds r4, r0, r1
-	ldrb r0, [r4, #2]
-	strb r0, [r5]
-	ldrb r0, [r4, #3]
-	strb r0, [r5, #1]
-	adds r0, r6, #1
-	strb r0, [r5, #3]
-	bl sub_08018500
-	pop {r4, r5, r6, pc}
-	.align 2, 0
-_080185B0: .4byte gUnk_080B3D20
-
diff --git a/src/kinstone.c b/src/kinstone.c
index d4cf1cf3..11a5835e 100644
--- a/src/kinstone.c
+++ b/src/kinstone.c
@@ -38,6 +38,29 @@ void sub_0801876C(int, int);
 void sub_08018738(u32, int);
 void sub_08018690(int param_1, u16* param_2);
 void sub_08018500();
+bool32 sub_080185B4(const struct_gUnk_080B3D20* param_1);
+
+void sub_0801855C(void) {
+    u32 bVar3;
+    struct_area_28* ptr;
+    // TODO: Figure out what is up with the pointer assignment
+    struct_gUnk_080B3D20* pcVar2 = (struct_gUnk_080B3D20*)&gArea.unk28;
+
+    MemClear(pcVar2, 0x14);
+    ptr = (struct_area_28*)pcVar2;
+    for (pcVar2 = gUnk_080B3D20, bVar3 = 0; pcVar2->unk0 != 0xff; pcVar2++) {
+        if (sub_080185B4(pcVar2)) {
+            bVar3 = ptr->unk2b;
+        }
+        ptr->unk2b++;
+    }
+    ptr->unk2b = bVar3;
+    pcVar2 = &gUnk_080B3D20[ptr->unk2b];
+    ptr->inventoryGfxIdx = pcVar2->unk2;
+    ptr->unk29 = pcVar2->unk3;
+    ptr->unk2b = bVar3 + 1;
+    sub_08018500();
+}
 
 bool32 sub_080185B4(const struct_gUnk_080B3D20* param_1) {
     if (param_1->unk0 == 0xff)