"RED ARTERY" is an EP featuring five tracks that reflect where iamSHUM stands today. The project explores themes of human connection, inner conflict, self-discovery, and hope. The lead track, "Koko ni Iru Yo (I'm Here)," is included in both a duet version featuring Meluna and a collaboration version featuring Hatsune Miku. The EP also introduces the brand-new song "Daijoubu (It's Okay)," a heartfelt message of encouragement for those facing loneliness, uncertainty, and life's challenges. The title "RED ARTERY" symbolizes the pulse of life flowing from the heart through the body. It represents vitality, emotion, and iamSHUM's desire to deliver meaningful messages to listeners through music. This EP captures the current heartbeat of iamSHUM.