diff --git a/10-Input/Classes/Japanese Class_2025-12-23.md b/10-Input/Classes/Japanese Class_2025-12-23.md
index f6923be..c44eb1e 100644
--- a/10-Input/Classes/Japanese Class_2025-12-23.md	
+++ b/10-Input/Classes/Japanese Class_2025-12-23.md	
@@ -17,10 +17,20 @@ This week's lesson covered two main grammar points:
 # Random Words
 -  上手い -> Smoothly
 	- 上手く -> Adverb version of that ^
-	- うまくいくといいですね
+	- うまくいくと,いいですね -> If things go smoothly, it'll be good
+- 
 
 # Main Point
-- 
+
+と after a sentence phrase
+You can stick と after a phrase in a sentence to show it is the reason of what coming after. Kind of like if, but more focused on cause and effect.
+
+- うまくいくと, いいですね
+	- If things go smoothly, it'll be good
+- ご飯を食べると、ねむくなります。
+	- If I eat lunch, I'll then become sleepy
+
+
 
 # Supplementary Notes
 -