A Secret Cohabitation with Big Sister – Milk Tea Bond Thicker Than Blood

Synopsis

After that day, after that stream ended──

Thanks to support from a mysterious sponsor, the older sister is finally free from financial hardship, and her younger brother has become a university student. The two thought they had finally reclaimed their “normal life.”

But then, one day, an “intimacy gauge” suddenly appears above their heads.

It clearly showed that their relationship was no longer “normal.”

In the morning, they cook together. At night, they watch movies nestled on the sofa. Their fingertips brush in unspoken moments. Before long, their time alone together keeps growing longer.

The “false love” they performed in front of the streaming camera gradually transforms into a quiet, genuine “true feelings” in their everyday life without the camera──

Until the day they cross that forbidden line.

A tender, slowly heating “romance simulation” life between siblings begins now.