diff --git a/Symphogear/XV [BD]/common/filter.py b/Symphogear/XV [BD]/common/filter.py
index 4578670..47345b8 100644
--- a/Symphogear/XV [BD]/common/filter.py	
+++ b/Symphogear/XV [BD]/common/filter.py	
@@ -32,7 +32,7 @@ def w2x(clip: vs.VideoNode, w2x_range: List[Union[int, Tuple[int, int]]]
 
 
 def deband(clip: vs.VideoNode, hard: List[Union[int, Tuple[int, int]]],
-           harder: List[Union[int, Tuple[int, int]]]):
+           harder: List[Union[int, Tuple[int, int]]]) -> vs.VideoNode:
     line = retinex_edgemask(clip).std.Binarize(9500).rgvs.RemoveGrain(3) \
         .std.Inflate()
     nf3kdb = clip.neo_f3kdb.Deband(range=18, y=32, cb=24, cr=24, grainy=24,
@@ -42,9 +42,9 @@ def deband(clip: vs.VideoNode, hard: List[Union[int, Tuple[int, int]]],
                                   grain=4)
     placebo2 = clip.placebo.Deband(iterations=3, threshold=5, radius=32,
                                    grain=4)
-    deband = replace_ranges(nf3kdb, placebo, hard)
-    deband = replace_ranges(deband, placebo2, harder)
-    return deband
+    debanded = replace_ranges(nf3kdb, placebo, hard)
+    debanded = replace_ranges(debanded, placebo2, harder)
+    return debanded
 
 
 def ncop_mask(clip: vs.VideoNode, src: vs.VideoNode,
diff --git a/Symphogear/XV [BD]/common/scale.py b/Symphogear/XV [BD]/common/scale.py
index f381a6f..2ded784 100644
--- a/Symphogear/XV [BD]/common/scale.py	
+++ b/Symphogear/XV [BD]/common/scale.py	
@@ -17,7 +17,8 @@ class FadeRange(NamedTuple):
     range_: Tuple[int, int]
 
 
-def _sraa_frameeval(n: int, clip: vs.VideoNode, w: int, h: int):
+def _sraa_frameeval(n: int, clip: vs.VideoNode, w: int, h: int
+                    ) -> vs.VideoNode:
     frame = clip.get_frame(n)
     if frame.height < 1080:
         rfactor = 2.5
@@ -27,14 +28,16 @@ def _sraa_frameeval(n: int, clip: vs.VideoNode, w: int, h: int):
                          rfactor=rfactor, h=h, ar=w/h)
 
 
-def _sraa_reupscale(clip: vs.VideoNode, width: int, height: int):
+def _sraa_reupscale(clip: vs.VideoNode, width: int, height: int
+                    ) -> vs.VideoNode:
     sraa = clip.std.FrameEval(partial(_sraa_frameeval, clip=clip, w=width,
                                       h=height))
     scale = sraa.resize.Spline36(width, height, format=vs.GRAY16)
     return scale
 
 
-def _fade_ranges_with_refs(clip, reupscaled, ranges):
+def _fade_ranges_with_refs(clip: vs.VideoNode, reupscaled: vs.VideoNode,
+                           ranges: List[FadeRange]) -> vs.VideoNode:
     mask = core.std.BlankClip(clip)
     for r in ranges:
         rmask = core.std.Expr([clip[r.ref], reupscaled[r.ref]], "x y - abs")
@@ -46,7 +49,7 @@ def _fade_ranges_with_refs(clip, reupscaled, ranges):
     return mask
 
 
-def _really_dumb_inverse_mask(clip, reupscaled: vs.VideoNode,
+def _really_dumb_inverse_mask(clip: vs.VideoNode, reupscaled: vs.VideoNode,
                               ranges: List[FadeRange]) -> vs.VideoNode:
     reupscaled = reupscaled.resize.Bicubic(format=clip.format.id)
     line_mask = retinex_edgemask(clip, 0.0001).std.Binarize(10000)
@@ -57,7 +60,8 @@ def _really_dumb_inverse_mask(clip, reupscaled: vs.VideoNode,
 
 def descale(clip: vs.VideoNode, force_scale: List[Union[int, Tuple[int, int]]],
             no_scale: List[Union[int, Tuple[int, int]]],
-            fade_ranges: List[FadeRange], show_mask=False) -> vs.VideoNode:
+            fade_ranges: List[FadeRange], show_mask: bool = False
+            ) -> vs.VideoNode:
     dmask = partial(_really_dumb_inverse_mask, ranges=fade_ranges)
     kernel = Bicubic(b=1/3, c=1/3)
     heights = [871, 872, 873]