Sankaku no Kyori wa Kagirinai Zero

is a Japanese light novel series written by Saginomiya Misaki, with illustrations by Hiten. The series began publication on May 10, 2018 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
A mysterious and distorted love triangle between me and "they". The distance is endless and approaches zero.

I play "a false self" in public. What I fell in love with was Akiho Minase, a quiet transfer student who always sticks to me. However, there was another girl in her-a gentle and missing girl, Haruka Minase.

Two people in one person ... Multiple personalities "Autumn" and "Spring". When we learn their secrets, our relationship is mysteriously twisted-this is a love triangle story between me, her and her.