After an introduction and perseverance through life, PLAVE complete their ASTERUM trilogy by exploring their world further. Preceded by the single "Merry PLLIstmas", second mini album ASTERUM : 134-1 features musical styles PLAVE have attempted in the past, while also sprinkling in a few more experiments.

"Watch Me Woo!" is PLAVE's first attempt at a sexy style, blending smooth vocals with a sensual afro-pop beat. On this song, PLAVE boast about their successes while living a wild life full of ambition.

"WAY 4 LUV" is the soft rock title track about taking the risk of journeying to find love. Its colorful vocals and atmospheric production gives the song an otherworldly feel.

PLAVE have been known to be quite silly when they're not making hits, and "버추얼 아이돌 (Virtual Idol)" depicts that silliness. This playful hip-hop cut features various inside jokes while PLAVE shake off the haters and embrace support from PLLI. The song also features a cameo from the group's CEO, William.

PLAVE offer comfort to their past selves on orchestral ballad "From", which develops from a piano to a sweeping string melody. With their soothing vocals, the group reflects on their past emotions and sends their past selves love.

Another tribute to PLLI, R&B track "우리 영화 (Our Movie)" compares PLAVE's moments with PLLI to a movie. The members excitingly join together to highlight PLLI's beauty and look forward to making more memories/movies.

"Merry PLLIstmas" is a holiday single that sees PLAVE sing about spending Christmas with PLLI and falling in love.