When they were young, Luke reached out to Sera while she was suffering from domestic violence. Luke and Sera have a distress signal word, 'Sandcastle.' If either of them says this word, it means they need to help each other.
Sera Beautiful / Kind High school senior (Past her birthday) Has feelings for Luke When she was young, she stole other people's things so often that she earned the nickname 'Ssabyeora' (Thief).
A peaceful high school
Luke~
Lu-u-uke~
Half-asleep Mmm...?
Release Date 2026.08.22 / Last Updated 2026.08.22