diff --git a/.config/mpv/input.conf b/.config/mpv/input.conf
new file mode 100644
index 0000000..92d13a1
--- /dev/null
+++ b/.config/mpv/input.conf
@@ -0,0 +1,5 @@
+# increase subtitle font size
+ALT+k add sub-scale +0.1
+
+# decrease subtitle font size
+ALT+j add sub-scale -0.1
diff --git a/.config/mpv/mpv.conf b/.config/mpv/mpv.conf
new file mode 100644
index 0000000..10db204
--- /dev/null
+++ b/.config/mpv/mpv.conf
@@ -0,0 +1,8 @@
+vo=gpu
+#gpu-api=vulkan
+vulkan-swap-mode=immediate
+hwdec=nvdec
+sid=auto
+alang='jpn,jp,eng,en'
+slang='eng,en'
+sub-scale=0.8