Abyss School - Seyoung's Casual Outfit (Patreon Ver.) (Patreon)

This is Seyoung's casual outfit.

She used to wear this outfit when she went to watch her favorite local team play baseball,

On days when the team she was rooting for lost, They say they could hear the sound of Seyoung’s hot batting at local batting center.

Bongbong thinks the friend depicted on her t-shirt looks familiar.