The simplest means of baiting tentacle monsters is probably telling Hikari she's Sailor Moon, dressing her up as such, and then sending her out to 'protect innocents in the name of love and justice'.  Now, for an incubus, you'd probably need to convince the brothers to leave Ichigo unattended on a stormy/snowy night so she can entertain a 'gentleman caller' whose 'car broke down nearby'...  they just love to play that angle.<br/><br/>Orochi is a bit more difficult, since you need seven maidens and seven chalices of wine.  None of us are old enough to buy booze!