海辺の街で、祖父と銭湯を営む遼馬。いつものように学校帰りに開店準備をしていると、父の隠し子を名乗る玲臣という少年がやって来て――？舞台は銭湯。義兄弟が繰り広げる、ビターで温かいヒューマンドラマ開幕！
Ryoma runs a public bathhouse with his grandfather in a seaside town. One day, during his usual routine of running the bathhouse after school, a boy named Reo appears, claiming to be his father’s illegitimate son. A bittersweet yet heart-warming drama unfolds between half brothers in a public bathhouse!
