diff --git a/_config.yml b/_config.yml
index 15ff548..16c4736 100644
--- a/_config.yml
+++ b/_config.yml
@@ -21,7 +21,7 @@ repository               : freqinfi/freqinfi.github.io
 #               Additional customization can be done by editing /_includes/author-profile.html
 author:
   # Biographic information
-  avatar           : "profile.png"
+  avatar           : "Giyoung.jpg"
   name             : "Frequency Infinity"
   pronouns         : # example: "she/her"  
   bio              : "Senior, Seoul National University"
diff --git a/files/Mecha Final/final.pdf b/files/Mecha Final/final.pdf
new file mode 100644
index 0000000..de6557e
Binary files /dev/null and b/files/Mecha Final/final.pdf differ
diff --git a/files/Mecha Final/proposal.pdf b/files/Mecha Final/proposal.pdf
new file mode 100644
index 0000000..bd9ebfe
Binary files /dev/null and b/files/Mecha Final/proposal.pdf differ
diff --git a/images/Giyoung.jpg b/images/Giyoung.jpg
new file mode 100644
index 0000000..4172ff2
Binary files /dev/null and b/images/Giyoung.jpg differ