STAYC, following the success of their second world tour "2025 STAYC TOUR 'STAY TUNED'" and celebrating their third year since debuting in Japan, introduces "STAY ALIVE," their first full-length Japanese album. The Member Solo (SIEUN) Edition features an impressive large jacket format (30 cm × 30 cm) and includes an additional jacket showcasing SIEUN's exclusive illustration design, a four-fold poster, two selfie-style Trading Card C Ver. Of SIEUN, and a bi-fold lyric sheet. This edition combines premium design with collectible exclusivity, making it a must-have for fans seeking a personalized keepsake.