Ikenaikyo - Episode 3 - Eruca Introduction

Allen has a provocatively dressed stepsister, Eruca. She had been trying to find him since he became a recluse.

Eruca had always been competitive with her stepbrother. About everything! When she heard that Allen started teaching Charlotte how to be "naughty," she wanted to be better and show Charlotte other "naughty" things. Like clothes-shopping! Allen accidentally won when he chose a barely-there dress.