Later on, however, it is shown that she is very cunning and willing to take advantage of classmates for her own personal gain. She has a very deep and deranged obsession for Peter to the point that she is willing to kill him in order to use 'soul bind' on him and make him her puppet and "boyfriend" forever. Due to her obsession, Eri has has shown to have little remorse or hesitation in doing whatever she can in order to achieve her objective of "having" him, as seen where she didn't regret killi