Record of the Stars: Chapter 2 Participate as a rated contestant for 5 times in the Arena
607
Anime Cup (2023) Solved 1 or more problems in Anime Cup Season 1 or 2
766
Summer Postcard Decoration: Top 1,000 (2022) Achieved a rank of top 1,000 in the Summer Postcard Decoration event, 2022
884
Arena: Top 100 Participate as a rated contestant in the Arena and achieve a rank of top 100 or greater
972
On a Roll Participate as a rated contestant in the Arena and increase your rating 3 times in a row
1.1K
A yellow badge with a blue ribbon that seems to fit somewhere (2023) Solved a problem with โ41โ in its ID, between 6:00 AM April 1, 2023 KST and 1:00 AM April 3, 2023 KST
1.2K
Arena: Quarter Solves Participate as a rated contestant in the Arena and get full score for quarter or more of the problems in the contest