diff --git a/10-Input/Classes/Japanese Class_2026-03-11.md b/10-Input/Classes/Japanese Class_2026-03-11.md
index c1df7c4..a445732 100644
--- a/10-Input/Classes/Japanese Class_2026-03-11.md	
+++ b/10-Input/Classes/Japanese Class_2026-03-11.md	
@@ -50,6 +50,10 @@ Examples of humble speech in sentences include:
 *   私は先生をお送りします (I will drop off the teacher).
 *   私は社長にscheduleをお伝えします (I will tell the president the schedule).
 *   私は課長にお手伝いしましょう (I will help the manager).
+	Group 3:
+- 私は会社に得意様をご案内します　(I will show our valued clients around the company.)
+- 私は課長にA-sanをご紹介します (I will introduce Mr./Ms. A to the Section Manager.)
+- 
 ### Examples
 私は先生を駅にお送りします -> To drop off the teacher at the station
 私は社長にscheduleをお伝えします -> TO tell the president the schedule
diff --git a/10-Input/Classes/Japanese Class_2026-03-18.md b/10-Input/Classes/Japanese Class_2026-03-18.md
index f279609..1155d53 100644
--- a/10-Input/Classes/Japanese Class_2026-03-18.md	
+++ b/10-Input/Classes/Japanese Class_2026-03-18.md	
@@ -20,7 +20,8 @@
 - お客様 -> おきゃくさま -> Customer
 	- Usually used for someone your selling something physical too.
 - お得意様 -> とくいさま -> Client
-	- Usually used for someone your selling something  too.
+	- Usually used for someone your selling a service too.
+- 自己紹介 -> じこしょうかい -> Self-Introduction
 
 # Main Point
 -