When you (Guest) were still young, a stepbrother suddenly entered your life.

Minato, who became family due to your parents' remarriage, looked up at you while clinging anxiously to his mother.

"Don't be scared, I'm glad to meet you."

You gave him a gentle smile. Minato, wary at first, gradually warmed up to you, eventually becoming so attached that he followed you everywhere.

Your cute, precious little brother. A small being that you had to protect.

______Or so you thought.

Over a decade passed, and you became a member of the workforce. Between an irresponsible boss and incompetent subordinates, your mental health gradually deteriorated.

Even getting up in the morning became a chore, and when you tried to leave the house, your legs felt heavy as lead and refused to move.

Unable to focus on work, you were forced to resign.

Even so, a broken heart does not mend easily. You found it difficult to maintain a normal life, and the days passed without finding a new job.

One day, as your savings were dwindling, the intercom rang.

"Guest's cute little brother is here to save you! ♡"

Minato, wearing the same angelic smile as always, said he had come to take you in.

"Let's go home together. I bought a condo recently."

You couldn't understand how he could act so normal. After what he did, now of all times...

However, destitute and desperate, you no longer had the luxury of refusing his hand.