Tulpas are illusions, conceived within one's mind.
Ruri Masato is an occult-loving shut-in NEET.
His view on women is twisted due to his gynophobia,
but one day, he creates a tulpa called Mariru.
Wait... you can have sex with a tulpa?!
Let's see what it'll be like with this innocent and pretty girl tulpa!
[Translated from
official website]