i guess this is the result of the bad education that sister 3 has been received from sister 1 , sister 2 and her grade school :
sister 2 : look at my example , a good girl should dress up like a $lut / a wh0re , and act like a $lut too : dye your hair , tan your skin , show your bra and panties , hang out / "play" with a lot of males , ....
sister 1 : strangers are definitely not danger , now you can go and "play" alone with your in-law , non-blood-related brother/father and nephew/brother in a closed room . next , you can travel alone to the elf country , with your "brother" , the pig and the lizard , without my supervision . next , you should "play" with a lot of elf strangers in a closed room .
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last pages : the guy who is luring the sister is evil tintin ? lol : https://en.wikipedia.org/wiki/Tintin_(character)
the pages below is from the manga Kami-sama no Iutoori 2 .
and tintin also infiltrates another manga : my hero academia , aka , my ZERO academy , as Mirio Togata .
BTW , Kami-sama no Iutoori 2 , and my ZERO academy are total trashes , dont waste your time with them .