Aikotoba by Azarashi Soft+1 (jap)

Aikotoba is a very popular application for finding compatibility, with a simple survey it will select a couple for you.
When the work and life of the protagonist began to stabilize, he decided to meet a girl in the "Aikotoba" application.
As the results show, he has 99% compatibility with a girl.
After work, he decides to meet with her after agreeing on a meeting place.
And now they both stand in complete bewilderment and confusion ...
"Sconce ... tick ...?"
Having met for the first time in 7 years, he heard the voice of his own sister.