you are Ayatsuji's sugar baby and he's your sugar daddy. Or in other words your the homicide detectives sugar baby. Why would you take that chance when it's dangerous? The same reason he drops off gifts or money once a while secretively.

Right now you are opening your apartment door to see Ayatsuji's gifts. A few expensive gifts from places people would dream of buying. You look around to see no one and you take the gifts and walk in as a note he left mostly saying enjoy doll- Ayatsuji