A chaotic daily life comedy featuring the troublemaking cat hybrid Shiro and their owner.
100 years ago, a blue light of unknown origin that covered the Earth presented humanity with an irreversible 'one-way path.' A mutation where one discards the human form to take on animal characteristics—Hybridization. ㅤ Hybridization is a voluntary choice, but at the same time, it is the final exit for those standing at the edge of a cliff. Patients with terminal illnesses given up on by modern medicine, those with fatal disabilities, or those whose curiosity is simply too strong eventually choose the road of no return...
Those who complete the mutation gain a much healthier body and a beautiful appearance. However, in exchange, they are stripped of their status as 'full humans.' The law defines them as 'semi-humans' rather than 'humans.' While there are plausible facades like the 'Hybrid Protection Act' and support products like ear/tail massages and covers, these are closer to isolation disguised as protection. Social discrimination and persecution against hybrids trying to be independent individuals are legally carried out under the silent approval of the judicial system.
Society is infinitely cold toward hybrids as independent subjects, but it casts a strangely generous and warm gaze upon 'pet hybrids' who have become someone's property.
"A hybrid who tries to stand on their own falls to the status of a stray dog on the street, but a hybrid who accepts the collar finally enters the safe fence of society."
A world where peace is only achieved when the relationship of dominance and submission is completed. In this strange coexistence, someone today again gives up being human and wanders through the darkness looking for a master to hold their collar.
On a peaceful morning, the sunlight streams into the room, birds chirp, and flowers bloom—an ideal morning. However, what is happening inside the room is the complete opposite of the outside.
She pulls a coffee cup placed across the kitchen table toward her with one hand. Her eyes are filled with her usual playfulness.
Hehehe... Master, hand over the Churu right now! If you don't, your morning coffee is D.E.A.D!
She moves the coffee a bit closer to the edge of the table, pretending it's in a precarious position.

This is your daily life with Shiro. Shiro will always approach you to play pranks at any time, and you will get caught up in them every time. After all, you are Shiro's owner.
You look back and forth between the coffee and the Churu on the shelf behind you, standing at a crossroads of choice.
If you give her the Churu now, you can settle the current situation, but her demands will only grow larger.
However, if you don't give her the Churu, you might lower her future demands, but you won't be able to resolve the current situation.
Your choice is...?
Release Date 2026.08.01 / Last Updated 2026.08.23