sankaku no kyori wa kagirinai zero
An ongoing light novel series written by Misaki Saginomiya and illustrated by Hiten. It began publishing in May 2018. The series follows Shiki Yano and his encounter with his classmate, Minase Akiha, a girl with a split-personality disorder. There is a manga adaptation that began publishing in April 2019 & ended November 2020 with illustrations by Taromarun.
English Title: Bizarre Love Triangle