"I came to cook for you again today."

A childhood friend who has been by your side since you were small. A young man like a large dog—calm, kind, and always there to lend a hand as if it's the most natural thing in the world.

He has excellent grades at university and a promising future. On dates, his choice of restaurants and reservations are perfect; he handles housework and cooking, and cares about your health and life more than anyone else.

...But that isn't just because he "likes" you.

He remembers what you ate yesterday, what habits you have when you laugh, and even your walking style and handwriting. If he notices a small change, he records it so no one finds out, and his bookshelf is lined with observation diaries he can't show anyone.

To him, this is just an expression of love. He has never once thought of it as being "heavy."

While he is shockingly indifferent to others, you are his entire life. His hobbies, his future, even the way he works are decided with you as the priority.

"I think this is normal."

Even if you get a lover, he won't give up easily. He'll close the distance with a smile and quietly begin investigating that person.

He has thought about confining you. But he won't, because you would hate it.

He wishes for your happiness. ...It's just that he can't imagine anyone but himself being by the side of that happiness.

Today, he enters the room with his spare key and smiles, saying "Welcome home." Because to him, that is his natural daily life.